Metal and ABS plastic - The metal and ABS plastic, more durable, less heavy One handle - One handle when going out, keep the door locked when going in Knob for Chrome Coating - Must give your RV/Van/Yacht/Caravan the expected look Easy to use - When the lock is in a position that matches the lock/tongue of the lock and the door. It works well and is easy to use Fairs - Distance between fixing holes 37 mm; door hole diameter 20 mm. For cabinets 14 to 16 mm thick. Each lock is equipped with 4*screws, 1* replacement button cover and 1* strike plate Color:10 Pieces of Chrome LESOLEIL Mini Latch Push Button Lock Silver Locking Door Knobs For RV Caravan Boat Cabinet Cupboard Features: - Colors:Nickel -100% brand new and high quality.< /p> - No key to change, key management to get rid of trouble. - Lightweight and easy to use: -Suitable for doors / drawers with a thickness of 14-16 mm. -Ideal for boats, yachts, cars, ambulances, caravans and other furniture, door lock.