Fengek 15 Pcs Headset Spacer For Bicycle, 7 Sizes Carbon Fiber Road Bicycle Stem Headset Spacers Kit For 1-1/8 Inch Stem, 1Mm 2Mm 3Mm 5Mm 10Mm 15Mm 20MmSpecification Material: carbon fiber Inner Diameter: 1-18 inch286mm Width: 1mm 2mm 3mm 5mm 10mm 15mm 20mm Quantity: 15pcs Package includes: 2 x 1mm Headset Spacer 2 x 2mm Headset Spacer 3 x 3mm Head..

2 Packs Bike Trailer Coupler, Fengek Bike Trailer Hitch Instep Bike Trailer Attachment for Instep and BikeSpecification Material: Steel Color: Black Size: junction part to bike hole dimeter: 0.4 inch/ 10mm; diameter of screw nut fixed in: 0.87 inch/ 22mm; the embedded part attached to trailer hole diameter: 0.255 inch/ 6.5mm; length: 0.984 inch/..