1. Universal Kit for Cars: This headliner kit includes 65 buttons for roof lining, 65 colored positioning pins, 1 tape measure, 1 screwdriver, and 4 blue disassembly tools. The car roof trim kit helps fix loose or sagging headliners and is compatible with most vehicle models, matching various interior styles. 2. Rustproof and Durable: The car rivets feature a mesh fabric surface with a special coating to prevent rust and ensure longevity. The tape measure is soft and foldable for convenient distance measurement. Galvanized screws and bases provide even more stable fastening. 3. Easy Installation: Simply measure the distance with the tape measure, mark the spots with colored pins, attach the screws to the roof trim using the screwdriver, and then mount the rivets. Finally, secure the headliner buttons to complete the assembly. No extra tools are needed, and the roof remains undamaged. The recommended spacing is 4.7 to 5.9 inches. 4. CostEffective: With this headliner kit, you can easily perform repairs at home without leaving the house or requiring much time or expertise. The 65 rivets are ample and more affordable compared to a 4S workshop .