Features: The Bicycles earphone pad is consist of carbon fibers, which is environmental friendly, solid and durability. Suitable for most mountain bikes, road bikes, and mountain bikes. Light weight, easy to install, smooth face, and exquisites elaborate. Different size can meet your needs and satisfy different requirement. These Bicycles accessories are used for long time. Specifications: Type:Two Elections Inner diameter 28.6mm/1.125in 11Set: 1pc1mm, 2pcs 2mm, 2pcs 3mm, 2pcs 5mm, 2pcs 10mm, 1pc 15mm, 1pc 20mm 15Set: 2pcs 1mm, 2pcs 2mm, 3pcs 3mm, 3pcs 5mm, 3pcs 10mm, 1pc 15mm, 1pc 20mm Component:Carbon Fibres Package Includes: 11/15pcs Headsets Spacer note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.