1. Material: kraft paper + PVC 2. Specifications: small for 4.7-inch phone case, large for 5.8-6.7-inch phone case 3. Suitable for cell phone leather case, cell phone case silicone cover 4. Pressure and fall resistance, durable, transportation is not easy to break 5. Weight: small 25g, large 30g 6. Size: small: 166 x 94 x 15.5mm, large: 187 x 104.7 x 15.5mm 7. Note: This product is the packaging box, the phone case shipped without.