Light as a feather - the Mono Tuber by Salewa! Whether for indoor climbing or short routes out on the cliffs, the ultra-light Tuber is invaluable in securing anchors for lead or top rope climbing. It is suitable for single ropes of a diameter ranging from 7.7 to 11mm. Its deep grooves offer optimum braking friction and helps you conserves your strength when lowering the top-roper. The Mono Tuber by Salewa is the perfect choice for gram-counters with an eye for safety.