uxcell V Groove Roller Sliding Window Gate Pulley Wheel 22mm Dia 6Pcs Product Name: Sliding Gate Wheel; Material: Metal, Plastic Weight: 47g; Package Content: 6 x Sliding Gate Wheels, Serveral Mounting Parts Main Color: White, Silver Tone Wheel Size: 22 x 9mm/0.87" x 0.35"(D*T) Thread Dia: 3mm/0.12"