Once you release the spring load

or in the studio

adds friction and protects the climber's hand

Tension:15KN

[IMPROVE SECURITY] The 50KN Rescue Figure uses the friction between the rope and the Descender device to slow down the descent or brake

NewDoar 28KN UIAA & CE Certified Auto Climbing Carabiner -Orange 5pcs Rope Clamp Once you release the spring[CE UIAA Certified]: These Carabiner are made from7075 aviation aluminum material, which is super strong and portable. CE EN 12275: 2013 & UIAA 121 QUALITY GUARANTEED! keep you safe and can stand 28KN (approx. 6180 LB force) pull force and up. [Easy to Operation]: The twistlock design, you can easily operate this with one hand. With a simple twist to the barrel and push against the spring load, it will open. Once you release the spring load, it'll