The No.7 Carbon headset stack spacers save weight and add style to any bike. 5-packs available in matte or gloss finish, with multiple sizes to choose from. a Full unidirectional carbon construction a 5 year Whisky warranty a 5-Pack of 10mm spacers a Matte finish Specs a Manufacturer Whisky Parts Co. a Manufacturer Part Number AC-28.6*32.5*10, UD MATTE a UPC 708752168060 a Model Whisky Parts Co. No.7 Carbon Headset Spacers 5-Pack a Headset Stack Spacer Style 1 1/8inch Threadless a Headset Stack Spacer Type Carbon a Headset Stack Spacer Size 10mm a Defined Color Black