Package Includes: 7 black light dimming sheets 17x10cm/6.7x3.9 inch 0.1mm thick Material: Made of PET material durable and stable wear-resistant and dustproof reliable performance. The self-adhesive backing has a good adhesive strength sticks well and is easy to tear off leaving no residue behind. Dimmer: This dimmer sticker allows you to locally adjust the dimming of LED lights and other electronics to reduce the impact of LED lights on your rest or sleep. Wide Application: This LED dimming film can be used to cover a variety of screens and LED indicators such as alarm clocks radios car screens DVDs air conditioners refrigerators radios cable boxes monitors and so on. Easy to Use: Just tear it off and it will stick anywhere you want it can be cut into various shapes and sizes minimalist design does not destroy the original style of the appliance.