Climbing Technology Flyweight Quickdraw - 5 pieces Catalog specifications are as follows: Weight: Ultra-lightweight 57g Strength: 23-7-8 (KN) Gate Opening: 23mm These are quite light due to the wire gate carabiners, making them suitable for multi-pitch climbs and alpine use where weight reduction is desired. The rope-side carabiner includes a Fixit rubber retainer to prevent rotation. These are used climbing gear, so please use them at your own risk.