Allen 20mm Double Dynamic Block with Becketand Hook Boat 470 Stainless steel wire guides keep

Stainless steel wire guides keep balls captive when the car is off the track

Digitally dimmable design means you will not need additional circuitry to adjust to just the right output

use NEP-2 for longer cable runs

Accepts any 5 series swivel block for hard to solve lead problems

The swiveling control valve/regulator

Allen 20mm Double Dynamic Block with Becketand Hook Boat 470 Stainless steel wire guides keepThis 20mm Double Dynamic Block with Becket and Hook is not only lightweight and strong, but also offers low friction and fast rolling speeds. Its dynamic range is perfect for applications that require constant sheave movement such as sailing, windsurfing, and kitesurfing. The becket eases tying off, while the heavy duty hook allows for quick attachment or release. With our patented bearing system and unique Ultra Strap, this block is superior in load