This item is made by cast iron, high anti-theft and high safety, single lock heads inside. Easy to install, user friendly. Support manual , Suitable for : home, offices, schools, hotels, factories, warehouses, etc. Feature - Color: As Shown. - Material: Cast Iron+Copper. - Size: 9 x 6.3 x 2.5 cm. - Lock material iron Upgrade to cast iron, lock body surface , durable and beautiful. - Suitable for wooden door,glass door,metal door,fireproof door. Suitable for home,offices,schools,hotels,factories,warehouses,etc. - Easy installation: Installation is quick and easy, and all necessary parts are included. - Matches antique hardware: The beautiful vertical trim lock set is constructed of durable black painted cast steel with brass plated steel knobs and rosettes. - It is designed for surface-mounted installations on interior doors, and it features an antique locking system. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 1 Lock