Allen 20mm Back To Back High Load Apparel & Personal Gear which is common amongst other

which is common amongst other styles

These combinations result in less friction

Allen Single Plain Bearing 38mm Block

This allows the width of the block to be as narrow as possible whilst still offering excellent rolling speeds and high working loads

This Optimist hook will fit all Optimist masts and is 100% class legal

Allen 20mm Back To Back High Load Apparel & Personal Gear which is common amongst otherAllen 20mm Back To Back High Load Dynamic Block. The sheaves face opposite directions to allow two control lines to run at a maximum of 180 degrees to each other. Held together with a strong stainless steel side strap and nylon mouldings ensures the block will not separate even under two very high opposing loads. The strength of the design lends itself to be tied around the middle in the slight V shape, meaning it can be used in applications such as