The Dual Insert Kit Is The Ultimate Stealth-Mounted Mountain Bike Tool Set Which Features A Pair Of Our Innovative Tools That Discretely And Securely Hide In The Ends Of A Handlebar: The Tubeless Insert Kit And The Tool Insert Kit.- The Tubeless Insert Kit Is Constructed From Lightweight, Durable Machined Aluminum And Features A Hardened Stainless-Steel Reamer. The Kit Is Easily Accessible For Quick Tire Repairs And Comes With Five High-Quality Tubeless Plugs That Can Also Be Stored Inside Its Body.- The Tool Insert Kit Is Constructed From Lightweight, Durable Machined Aluminum And Features Hardened Steel Tool Bits. The Kit Is Easily Accessible For Quick Repairs And Comes With Five (Small), Eight (Medium) Or 11 (Large) Different Tool Bits Ideal For Today'S Modern Bikes (See Specs Below).- The Kits Also Double As Bar-End Plugs, And Come With Three Differently Sized O-Ring Fasteners To Ensure A Secure Fit Inside Most Handlebar Openings.Specifications:Weight:- Tubeless Insert: 35g- Tool Insert: 84gTool Bits:- Tool Insert Kit - Large: Hex 2/3/4/5/6/8/10mm, Torx T10/T25/T30, Phillips- Tool Insert Kit - Medium: Hex 3/4/5/6/10mm, Torx T10/T25, Phillips- Tool Insert Kit - Small: Hex 4/5/10mm, Torx T25, Phillips- Tubeless Insert Kit: Tubeless Plug And Reamer