Climbing Technology Ct Click-up Plus With Hms Blue. It can be used with 8.5-11mm single ropes. The CLICK UP + is compact and lightweight. Allows for the belayer to keep both hands on the rope while belaying or lowering the climber. The V-Proof System (patent pending) reduces the chance of error due to an incorrect handling of the rope when braking. CLICK UP + is supplied and must be used together with the specific HMS carabiner CONCEPT SGL HC. The wear-resistant anodizing and ACL system of the carabiners prevents the possibility of minor-axis cross-loading. Specifications for Climbing Technology Ct Click-up Plus W Hms Orange: Manufacturer: Climbing Technology Color: Blue