Allen 25mm Single Fixed Head Block Apparel & Personal Gear The Ultra-Strap was the first

The Ultra-Strap was the first marine industry block designed to work specifically with a rope attachment

the attachment shackle can spin freely

Allen 30mm Single Dynamic Block

Featuring a ball bearing sheave which has been shaped to work with dyneema or wire

Allen Triple With Becket

Allen 25mm Single Fixed Head Block Apparel & Personal Gear The Ultra-Strap was the firstAllen 25mm Single Fixed Head Wire Block. Specifically intended for use where wire lines are subjected to low running speeds and higher static loads. Body Formed in stainless steel for a lightweight yet robust frame. Bearings A single row of spaced stainless steel ball bearings run on a stainless steel axle. This allows the width of the block to be as narrow as possible whilst still offering excellent rolling speeds and high working loads. For faster