FSAF Full Speed Ahead carbon fiber bicycleheadset spacer mtb bike washer top cap stem road fork cover 1-1/8'' 7.5 10 15 20 30mm Full Carbon fiber headset spacer fork cover1-1/8''*7.5 10 15 20 30mm 5 height for your choice:7.5mm, 10mm,15mm,20mm,30mm Only one size (height) and one piece on this order, pls note which size you want Fit for Bike Headset Stem :1-1/8'' (28.6mm)