Industry Nine Headset Combo Spacer Kit 1-1/8" Set/4 Orange CheckoutSpec= 175mm - Black The lenses are made of

The lenses are made of Unbreakable Polycarbonate which are 10 times more impact resistant than plastic or glass lenses and offers the highest degree of protection

Material: Ripstop nylon

find a ruler and stretch 10 inches of tape to 13 inches

this rear light provides reliable illumination

74mm post-mount replacement calipers: if replacing IS-51mm caliper

Industry Nine Headset Combo Spacer Kit 1-1/8" Set/4 Orange CheckoutSpec= 175mm - Black The lenses are made ofMachined aluminum spacers for tuning stem height Anodized colors to customize your cockpit Each 1 1 8 inch kit includes: (1) 2. 5mm, (1) 5mm, (1) 10mm and (1) 20mm per color TECH SPECS ID 1 1 8" size (1) 2. 5mm, (1) 5mm, (1) 10mm and (1) 20mm color orange package set 4