Package includes: 1 x lock 2 x keysFeatures: Material: zinc alloy Color: as picture shows Condition: 100% brand new and high quality Sliding glass door lock and 2 keys. Made of stainless steel for windows and doors， cabinets， counter move switch， safe and convenient. Includes a metal bar， the locking barrel (mechanism) and 2 keys. Keep your valued pet inside its vivarium / terrarium and to keep the un-wanted out. Suitable for an array of reptile housing or glass display cabinet/showcases Metal construction.Instructions: The bar slides between the panes of glass and is secured in place with a screw， the barrel then slides onto the bar and ratchets into place.