1. Material: PC2. The upper and lower covers are integrated to protect the edging, which is anti-drop, abrasion and scratch3. The thickness is about 01.5mm, light and not heavy4. The bottom fence is hollowed out to fit the computer cooling holes5. Using PC material, sturdy, durable and scratch-resistant6. Only the computer protective shell will be shipped, without other itemsSpecification: General Compatible with Apple: MacBook Air 13.3 inch A2337 (2020), MacBook Air 13.3 inch A2179 (2020) Package Weight One Package Weight 0.68kgs / 1.51lb One Package Size 33.5cm * 23cm * 2cm / 13.19inch * 9.06inch * 0.79inch Qty per Carton 40 Carton Weight 28.20kgs / 62.17lb Carton Size 69cm * 48cm * 22cm / 27.17inch * 18.9inch * 8.66inch Loading Container 20GP: 365 cartons * 40 pcs = 14600 pcs40HQ: 849 cartons * 40 pcs = 33960 pcs