1. Material: brown corundum, plastic/metal2. Mesh number: 803. Thickness: about 6mm for plastic models, about 7mm for metal models4. Shank diameter: about 6.35mm5. Size: about 5x5.5 cm/piece for plastic models, about 5x5.6 cm/piece for metal models6. Weight: about 70g/piece for plastic models, about 84g/piece for metal modelsSpecification: Package Weight One Package Weight 0.45kgs / 1.00lb One Package Size 16cm * 10cm * 10cm / 6.3inch * 3.94inch * 3.94inch Qty per Carton 66 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 66 pcs = 11682 pcs40HQ: 412 cartons * 66 pcs = 27192 pcs