These are Sensory Strips, made of good PVC material with self-adhesive design, these strips with different colors, will give you a relax feeling. You can stick in on your phone back, and when you feel anxious, you can touch it to calm down. Features -Color:Assorted Color -Material:PVC -Size:10.00X8.50X0.10cm/3.93X3.34X0.04in -Note:4 stickers / sheet. - Adopting from PVC material, which is lightweight, with and good workmanship. - You can stick these stickers on most surfaces, such as desks, windows, walls, laptops, guitars, cell phones, mugs, bottles and more. - These Calming Sensory Strips can be pasted on the back of the phone, which is more convenient. - Great tools to kill time while waiting or during dull and boring situations. Adhesive design, easy to install. - Sensory Strips can be a nice toy, also ideal for birthday party favors and Christmas gift. Package list: 3 x sheets of Sticker Strips