1. Material: stainless steel
2. Size: the diameter of a small wheel is about 22 mm, the width is about 26 mm, and the mounting screws are about 32×7 mm.
3. Weight: 4 wheels about 98 grams, 8 wheels about 145 grams
4. Purpose: sliding door
5. Features: smooth sliding, high-speed bearing with enlarged diameter pulley, good load-bearing, firm and stable, smooth and quiet, inclined surface design, wheel rolling process to prevent dust accumulation, with mounting screws, easy installation
6. Note: only hanging wheels, not the track in the picture
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