NISYROS Edges S II / UNI4613NISYROS Edges S II UNI4613 This set contains 5 small technical edges. Designed for hard competition style route setting. Smooth texture to protect climbers' skin. An anatomically correct design to prevent climbers' tendons from injury. Tip: Use them on plywood volumes Holds per set: 1 Size: Small Style: Edges Difficulty: Hard Weight: 0. 7 kg (1. 5 lb) 10*5*2 Installment: screws only Material: PU (Dannomond, best quality Polyurethane in the market)