uxcell 72mm Dia Yellow Replacement Inline Skate Wheel Roller Item Name: Inline Skate Wheel Size: 72 x 23mm/2.8'' x 0.9''(D*T) Inner Diameter: 21mm/0.8'' Weight: 59g;Material: TPU; Color: Yellow Pacakge Content: 1 x Inline Skate Wheel