☆ These decal stickers are UV safe and weatherproof, perfect for outdoor use! Yes, you can use these in your car, but they're also good for laptops, water bottles, and more! ☆ Size: 5.3" wide (~13.5cm) ☆ How to apply: Clean surface before application. Remove decal from backing, apply top layer to desired surface using a card or flat object to push out any bubbles. Once applied, carefully remove top plastic layer. Your decal is now transferred!