Merritt Trifecta Multi-Tool Description: The Merritt Trifecta Multi-Tool is a simple, pocket size, multi-tool designed for those quick fixes when you're on the go. Includes most commonly used tools to repair a BMX bike: 17mm socket wrench with slide-able handle extension for leverage, 6mm Allen key, 8mm Allen key, and 2 hook and loop straps. Only 5" long when folded. Dan's Comp has a large selection of Tools to fit your needs.