The ultra-light and versatile Spoc Pulley from Edelrid is easy to bring along on your big wall and high-altitude mountaineering climbs. Weighing just over two ounces, the Spoc is easily attached to your harness or stows in your pack until needed. It can be used as a classic rope clamp for ascents, a simple pulley, or as a pulley with a backstop for crevasse rescue operations. The cam, with an integrated spring mechanism, locks automatically and even grips your icy or muddy ropes during rescues. A cable pull allows you to easily open the backstop with one hand and can be fixed in the open position to use the Spoc as a simple pulley for hauling gear. Details Ultra-light, versatile pulley for climbing and mountaineering High-quality aluminum ball-bearing offers a 92% efficiency rate Backstop can be fixed in open position to create a simple pulley Cams deliver optimized grip for use on your muddy or iced ropes Pulley is designed to be used with oval or pear shaped carabiners Features The backstop can be fixed in the open position in order to use the device as a simple pulley Pulley diameter: 20 mm Suitable for ropes with a diameter of 7.0 to 11.0 mm as well as for the EDELRID RAP LINE Ball bearing pulleys for high efficiency (92 %) Cams for optimal grip on iced or muddy ropes Technical information Minimum breaking strength: 15 kN Certification: EN 12278 Certification: EN 567 Material: Aluminium, Steel, Polyamide