12mm metal axles for sliding window rollers, double wheel pulley

Product Name: Window Pulley; Material: Metal; Color: Silver Tone; Hole Spacing: 55mm / 2.2"; Hole Diameter: 4mm / 0.16"; Roller Size (each): 12 x 8mm / 0.64 x 0.31" (D * T); Overall Size: 68 x 16 x 15mm / 2.7 x 0.64 x 0.59" (L * W * T); Weight: 59g; Package Contents: 1 x Window Pulley. Designed with a double silver metal roller, easy and convenient to use, an ideal accessory for your door, window, etc.

Good quality product