Suitable for an array of reptile housing or glass demonstrate cabinet/showcases Metal structure .Keep your valued pet inside its vivarium / terrarium and to maintain the un-wanted out.Include a steel bar, the locking barrel (mechanism) and a pair of keys .Made of chrome steel for windows and doorways / shelves / counter circulation with pair of keys.Instruction: 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.Package Contents:1 x Lock2 x KeysOnly the above equipment content, other products will not be included.Note: Light shooting and diversified exhibits may cause the color of the object in the picture slightly varied from the real thing. The dimension allowed error is +/- 1-3cm.