Each Kit Comes With One Sheet Of 3mm Plugs And One Sheet Of 1.5mm Plugs Which Store Wrapped Around The Fork, Neatly Hidden Away Inside The Tool Pod.Features:- Unique, Compact, Straight-Line Design For Maximum Airflow- Simply Push Down To Inflate - Release To Stop- Unique Closed Base Silicone Freeze Protector Sleeve Prevents Your Hands From Freezing, Even Without Gloves- Manufactured From 6061 AluminiumInstructions:- Remove Valve Cap And Loosen The Valve Core. Check The Valve Is Clear By Pressing Down The Loose Valve Core. You Should Hear Air Flowing Through The Valve- Cover The Co2 Cartridge With The Closed-Base Freeze Protector Sleeve Provided- Screw The Co2 Cartridge Fully Into The Inflator Head. You May Hear A Small Hiss When The Cartridge Is Successfully Pierced. If Not, Give The Valve A Quick Press And You Should Hear Gas ´Tsssst´ Out- Press The Head Over The Valve And Push Straight Down Firmly To Discharge The Cartridge And Inflate The Tyre To Your Desired Pressure. Releasing The Inflator Head Will Stop The Flow- Once The Tyre Is Inflated, Remove The Inflator, Re-Tighten The Valve Core And Re-Apply The Valve CapSpecifications:Mtb Kit:- 2 X 25g Co2 Cartridges- 1 X Inflator Head- 1 X Closed Base Freeze Protector SleeveRoad & Gravel Kit:- 2 X 16g Co2 Cartridges- 1 X Inflator Head- 1 X Closed Base Freeze Protector Sleeve