MagiDeal Set of 12 MTB Cycling Reflective Rod Bike Bicycle Spoke Reflector Clip on Wheel Rim Material: ABS tube Color: As shown Dimension: approx.70x70x5mm/2.76x2.76x0.20inch Inside diameter: approx.1.8-2.5mm/0.07-0.10inch Outside diameter: approx.5mm/0.20inch