Used commonly in the mountains where lowering distances are long but long ropes are impractical to carry. The Alpine Brake Tube is an excellent choice for running multiple ropes through a single device and for passing knots. Anodized and bead blasted for long wearing friction and offers tie-off capabilities. It also has risers on the bottom to keep it off the ground while in use. Made of thick aluminum tubing and stainless steel. Works with virtually any size life safety rope. Weight 2.7lbs. (1.22 kg). Made in the U.S.A.