Please note this listing is for 2 PACKS / SETS. All products listed in packs are also available individually, please see our other listings or contact us. Security bolt with a cylindrical turn lever on a radius backplate. By rotating the small turn handle it engages the teeth on the bolt and slides it out smoothly from its housing into the opposing plate on the door frame, thereby locking the door. Reversing direction of handle retracts it back into position. Provides additional security, convenient and easy to use. Comes with a 10 year mechanical guarantee.Alias ID - bc06638ax2