I am selling this item because I purchased it from an EC site but never had the opportunity to use it. I only tested attaching it to a backpack, and it has never been used in the field. Due to the nature of the rubber, there is some slight warping, but it should not affect actual use. Both items are almost new, but please understand that they are used. SPEC/ Product Specifications Size: Total Length: 38.1cm Minimum: 14cm Maximum: 31.7cm