- Multiple combinations for easy storage 2. The back plate is firm and durable, strong load-bearing 3. Dip plastic to increase resistance and anti-skid, protect items 4. The material is stable and load-bearing, not easy to deform 5. Material: iron, PVC 6. Applicable scenarios: home, warehouse, garage, etc. 7. Weight: 630 small square/small circle about 112g/piece, 630 medium square about 160g/piece, 630 large square about 220g/piece, 630 big circle about 158g/piece, 235g/piece for 630 big wave 8. Size: small square about 10.8x6x7 cm/piece, medium square about 12.9x13x6 cm/piece, large square about 15.6x19x6.6 cm/piece, small circle about 11.8x7x3.8 cm/piece, large circle about 14.2x10.5x3.8 cm/piece, big wave about 16x19x6.5 cm/piece Set packing list: -5 PCS / set: 630 small square x1, 630 middle square x1, 630 generous x1, 630 small circle x1, 630 large circle x1 (accessories: screw x3, expansion nail x1) -10 PCS / set: 630 small square x2, 630 middle square x2, 630 generous x2, 630 small circle x2, 630 large circle x2 (accessories: screws x3, expansion nails x1) -8 PCS / set: 630 small square x3, 630 Chinese square x1, 630 generous x2, 630 small circle x1, 630 large circle x1 (accessories: screws x3, expansion nails x1) -12 PCS / set: 630 small square x4, 630 Chinese square x2, 630 generous x2, 630 small circle x2, 630 large circle x2 (accessories: screws x3, expansion nails x1)