ITEM NAME:18pcs Aluminum Alloy Tire Wheel Stem Schrader+French Air Valve Caps with Adapter Product Description Description: 18pcs CNC Aluminum Alloy Mountain Bike Bicycle Tire Wheel Stem Schrader+French Air Valve Caps Cover with Adapter Bicycle Accessories Features: 1. CNC process. 2. Aluminum alloy valve cap, can prevent air leaks. Specifications: Material: Aluminum alloy Color: Colorful Product size: 18mm*6mm*6mm/0.71*0.24*0.24" Net weight: 35g Gross weight: 35g Use: Screw the cap on the French valve. Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement. Included: 6 X French Valve Caps 6 X Schrader Valve Caps 6 X French to Schrader Valve Adapters.6 X French to Schrader Valve Adapters. Use: Screw the cap on the French valve. Aluminum alloy valve cap, can prevent air leaks. Material: Aluminum alloy. Net weight: 35g. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.