ITEM NAME:Outdoor Chest Ascender for 8-12mm Rope Tree Climbing Cave Passage Description: Suitable for ropes of diameter of 8-12mm It allows for safe and easy down climbing without removing the ascender from the rope The unique design with automatic mud clean groove, makes it still owns enough grip strength with frozen or dirt ropes With high elastic spring inside, convenient to install by single hand The small ring is on top when rising, it connected with should straps and can bring the body up easily The bigger ring is in below when rise, it connected on the seat belt by master lock Specification: Material: Aluminum Alloy The Maximum Load: 4KN Dimension: Approx. 4.25 x 2.76 inch/10.8 x 7 cm Color: Blue This product has got CE certification Package Includes: 1 x Chest Ascender Note: Attention: It is necessary to receive adequate training (knowledge of techniques and security measures) before using the tools. Incorrect use or improper maintenance could lead to serious accidents even fatal. Please read carefully or learn enough knowledge before use..It allows for safe and easy down climbing without removing the ascender from the rope. 1 x Chest Ascender. The unique design with automatic mud clean groove, makes it still owns enough grip strength with frozen or dirt ropes.