Used condition. Compatible rope diameter: (1) 9-11mm (∞) 7-11mm (1/2) 8-11mm Instructions: OM_BD_ATC-ATCXP-ATCsports.pdf https://share.google/xC1zqxq43KS1BAvFO OM2005_BD_ATCXP.pdf https://share.google/60goSV83qe5tUeXIc Product Features (reprinted from the Black Diamond website): The ATC-XP is the first model to feature a dual-friction mode that allows you to choose between two friction modes. HFM (High Friction Mode) provides three times the braking power of RFM (Regular Mode) and is effective for belaying climbers with a large weight difference, belaying with thin ropes, and rappelling. In addition, the central divider plate is expanded compared to the ATC for improved operability and kink prevention. The ATC-XP utilizes its excellent braking power and is suitable for all types of free climbing, including sport, trad, and multi-pitch.