The Stop belay device from Petzl is a descender device with assisted-braking. This is mainly used when caving and is convincing by its high safety and reliability. The abseiling speed can be optimally controlled by the ergonomically shaped handle and the assisted-braking. The transfer of strength of the handle is very precise and allows a good control of the rope run. The device itself is very easy to operate. To prevent errors during use, the correct installation on the rope is shown on the descender device. A safety clip on the device also allows it to remain permanently attached to the belt. This not only prevents loss of the device, but also makes it much easier to put it on and take it off. Due to the material blend of stainless steel and aluminium, the Stop descender is also particularly robust and durable.