Our Patented Ascenders Are Strong, Work On Ropes From 8mm To 13mm And Come With A Patented Lever That, When Suppressed, Allows For Safe And Easy Down Climbing Without Removing The Ascender From The Rope. Complete With A Comfortable Rubber Grip That Stays That Way Even In Harsh, Wet Conditions. The Rope Cam Is Designed To Hold Even On Dirty, Muddy Or Icy Ropes.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }