PVC foam non-slip mat:                                                                                                                                                                                    Both sides can stick to the object.you can stick it to on the car ,and put you cap/Mobile Phone/key or some other thing that will slip when you are driving.                                                                                                                                                                        Environment friendly                                                              Size:10x17.5x0.16                                                                                                                                                     Weight:28g