1. Material: ABS+acrylic glue 2. Size: about 3x2 cm/piece 3. Weight: about 30 grams/set (4 pcs/set) 4. Scope of application: storage boxes, trash cans, storage boxes, etc. 5. Features: strong and wear-resistant, dexterous and smooth, sticking firmly, not hurting objects, good bearing capacity, compact and portable, dual-wheel design, more stable center of gravity, uniform force 6. Note: only wheels, no other items in the picture
