1. Applying optical principles of polarized light, to anti peeping and protect privacy. 2. Magnetic adsorption, easy to install and remove. 3. Anti-glare, anti-reflective, protects eyes. 4. Made of PET material, with good flexibility, it would not affect the usage of MacBook at all after pasting the film. 5. Ultrawear-resistant material coating, 4-5H hardness, scratch-proof, explosion-proof and fingerprint-proof.Specification: General Compatible with Apple: MacBook Air 13.3 inch A1466 (2012 - 2017), MacBook Air 13.3 inch A1369 (2010 - 2012) Package Weight One Package Weight 0.09kgs / 0.20lb One Package Size 34cm * 24cm * 0.5cm / 13.39inch * 9.45inch * 0.2inch Qty per Carton 100 Carton Weight 9.00kgs / 19.84lb Carton Size 48cm * 35cm * 28cm / 18.9inch * 13.78inch * 11.02inch Loading Container 20GP: 566 cartons * 100 pcs = 56600 pcs40HQ: 1316 cartons * 100 pcs = 131600 pcs