20"(500mm) Bowden Wire Release System, Bowden Wire Release System w/Release Head, Release Head, For use with Easytouch Locking gas springs with K0 (M10x1) threads, 10mm Through hole for mounting, Bowden Wire, Length: 20"(500mm), 20ET1 Release Button, Plastic button with coil spring, This system is not recommended for use with gas springs with a force at or above 135lbs (600N), GAS SPRING NOT INCLUDED