Note: The color of the item may vary slightly due to photography and your own computer Specifications: These are Carbon Fiber Bicycle Headset spacers/ fork washer. You can use these spacers to raise your handle bar. Use for 1-1/8" (28.6mm) Stem. Material: Full Carbon Fiber Diameter: 28.6mm( 1 1/8") Weight: 28g (4PCS) Package Contents: 1 x 5 mm thick spacer 1 x 10 mm thick spacer 1 x 15 mm thick spacer 1 x 20 mm thick spacer