EasySea Olli™ - Snatch and Anti-shock Block 50x12 - Medium

A solid and robust snatch block, perfect for rerouting lines, craeting purchase systems or as a back up block for use if another fails. Built using aerospace materials, this block delivers superior performance onboard.

Crafted with a milled and anodized aluminum body, combined with shells made of advanced aerospace-grade polymers like SOLEF® (PVDF), and a Dyneema® soft shackle from world-leading brand Gottifredi Maffioli.
Every component is engineered to withstand extreme loads and harsh environments. The result? A block that is incredibly strong, durable, and built to perform.

Key Features:

• Openable – Quick Setup, Anywhere
  • Thanks to its smart design, the two shells can rotate once the Dyneema® soft shackle is released, allowing the block to open.
  • This means it can be installed directly onto an already tensioned sheet — ideal for quick additions, inspections, or adjustments without the need to unthread the entire line.
• Monolithic and Self- Lubricating – Zero Maintenance
  • No metal ball bearings, no removable parts. At the core of the Olli Block is a self-lubricating bearing made from two different aerospace polymers.
  • This results in a smooth, efficient, and maintenance-free system, designed to make life easier onboard.
• Impact-Friendly – Protects your boat
  • The aluminum ring is enclosed within two polymer shells, so if the block hits the deck when unloaded, the impact surface is softer than typical boat finishes (gelcoat, wood, aluminum). That means no scratches, no damage — just peace of mind.
• Dual Function – Block + Low Friction Ring
  • The central hole of the Olli Block is more than just a pass-through for the line.
  • It can serve as a fixed attachment point for creating a 4:1 purchase system, securing a spliced eye or soft shackle, or as a low friction ring to guide an additional line or deflected control.
  • Total versatility, compactly designed.

Specification:

• Line Diameter - 12mm
• Centre Hole Diameter - 25mm
• Thickness - 43mm
• Diameter - 50mm
• Weight - 184g
• Max Working Load - 900kg
• Breaking Load - 1800kg

Download the Easysea Olli Snatch Block Technical Datasheet here.

This item is currently not available to purchase.

Royal Mail Service Update: Please be aware when choosing Royal Mail as your preferred delivery method, your delivery time may be impacted by ongoing strikes and may take up to 20 working days. If your order is time critical we suggest choosing a courier or Next Day Service

Our Mail Order team ship chandlery, yacht parts and sailing clothing around the world. We use the best value couriers available, and we will endeavour to get your products to you as quickly and as cost effectively as possible.

International Orders: Due to delays we have had to suspend our international delivery options. 

UK Standard Delivery

• UK Mainland 0 - 2Kg (small jiffy) £3.95 Royal Mail Service. Despatch within 3- 5 working days, delivery in 7-10 working days for orders under £50.00
• UK Mainland up to 25Kg £5.95 Courier service with signature. Despatch within 3- 5 working days, delivery in 7-10 working days
• UK Mainland 25Kg+ Price on request
• UK Mainland Next Day 0 - 25Kg £9.95 Courier service with signature, orders must be placed before midday
• Northern Ireland, Highlands & Islands 0 - 2Kg (small jiffy) £3.95 Royal Mail Service. Despatch within 3- 5 working days, delivery in 5-7 working days for orders under £50.00
• Northern Ireland, Highlands & Islands 1 - 25Kg £10.95 Courier service with signature. Despatch within 3- 5 working days, delivery in 7-10 working days
• Northern Ireland, Highlands & Islands 25Kg+ Price on request
• Channel Islands 0 - 2Kg (small jiffy) £5.95 Royal Mail Service Despatch within 3- 5 working days, delivery in 5-7 working days for orders under £50.00
• Channel Islands 1 - 25Kg £13.50 Courier service with signature. Despatch within 3- 5 working days, delivery in 5-7 working days
• Channel Islands 25Kg+ Price on request

UK Exceptional Delivery

• UK Mainland; Antifoul & paints £5.95
• UK Mainland; Inflatable dinghy £10.00
• UK Mainland; Liferafts £17.50
• UK Mainland; Flares £49.95
• Northern Ireland, Highlands & Islands; Antifoul & paints £9.95
• Northern Ireland, Highlands & Islands; Inflatable dinghy price on request
• Northern Ireland, Highlands & Islands; Liferafts price on request
• Northern Ireland, Highlands & Islands; Flares not available to ship at this time
• Channel Islands; Antifoul & paints £13.50
• Channel Islands; Inflatable dinghy price on request Channel Islands; Flares not available to ship at this time

For further delivery information click here.

Standard Returns

If you are not entirely happy with your purchase, we will exchange or refund your goods in full, provided that the items are returned within 14 days of receipt.*

Please check the condition of goods on arrival - we are unable to accept goods damaged during shipping after 14 days.

Returned goods must be packaged securely, with all original packaging undamaged and in a saleable condition i.e. shoe boxes must be in the same condition as when received.

Goods must be unused and security seals intact.*

If you would like to return goods because they were ordered incorrectly or if clothing does not fit, return postage will be at your expense. If you would like us to replace the goods with another size or colour, we will charge carriage on the replacement.

Please be aware that some navigational and safety products may be dated, and as such a full refund may in some cases not be possible. If you are purchasing dated navigational charts we suggest you contact us for more information.

Faulty Goods

If you receive your goods and believe them to be faulty, please contact us straight away with a brief description of the problem. If we require you to return the product for a replacement, we will send you a pre-paid Royal Mail label for delivery back to us. Unfortuantely we cannot send the courier back to collect the items.

Returning goods to Force 4 is easy!

1. Please contact us by ringing 0345 1300 710 or email on [email protected]. This way we'll be able to determine whether you would like to return the product for a refund or whether you'd like to exchange the product. We are unable to process the return of faulty goods that we're not expecting.
2. We'll then give you a returns number. This returns number will need to be clearly marked on the outside of your parcel so it can be identified on arrival. Please note, failure to mark a returns reference number on the outside of your parcel may result in a delay in processing your return.
3. Don't forget your proof of postage, just in case!
4. Once we receive the item we'll be able to proceed with a refund or an exchange.

*this excludes faulty goods with manufacturers defects. If goods are found to be faulty during use, after the returns period, please just give us a ring on 0345 1300 710 and we'll be happy to help.

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