[Reflective Material] Our OPEN sticker is made of high quality PET material, with high brightness, good water resistance and long service life. [Strong Adhesion] The self-adhesive design is easy to adhere to any smooth and dry surface of the car body due to its self-adhesive characteristics, and can maintain the adhesion for many years without falling off. [Simple Installation] 1. Before pasting, ensure the pasting position. 2. Clean the dust or residue at the target location with water, and then wait for it to dry. 3. Tear off the protective film on the back and stick it. 4. Press for a few minutes to remove bubbles for better bonding effect. [Function] This label on the door can let the rear of the vehicle notice that you are opening the door as a safety warning. It is particularly important to improve vehicle recognition and actively reduce accidents, especially for vehicles parked at intersections, turns and roadsides. Weight: 10g Color: red, yellow, green, blue Material: PET Quantity: 1set Packing list: 4* car reflective stickers Only the above package contents are included, other products are not included. Note: Reflection of light and different monitors may cause the item's color to be slightly different from the actual item. Measurements allow +/- 1-3 cm.