Environmental window film which doesn't need extra glue， it's self adhesive， free from extraneous odour.Material: PVC film and Pet filmThickness: 0.2Width: 20cmLength: 1 meter/piece (approach to 39.4 inch)Conversion: 1 inch = 2.54 cm ， 1 cm = 0.3937 inchNote: when ordering multiple lengths，one continuous roll will be shipped Features:1. Environmental speciality， don't use any extra adhesive2. Privacy protection， light through3. 99% Anti-UV， reduce use air conditioning times， Low-carbon and energy conservation.4. Easy to stick and rip， reuse and protect your window glass， no trace left.