Park Tool MTB-3 Rescue Tool - 22 function The MTB-3 Rescue Tool is a premium quality multi-tool with the design and innovative features youd expect from the top name in bicycle tools. The MTB-3 Rescue Tool is a premium quality multi-tool with the design and innovative features youd expect from the top name in bicycle tools. Manufactured to the highest standards, all tools are finely polished stainless steel or nickel plated steel. Unique three-piece design (patent # 6,622,329) makes each tool easy to access and easy to use. Super tough nylon handles provide excellent grip when using tools. Includes nylon carrying case with embroidered Park Tool logo.