Specification: Material: ABS nylon +304 steel wire Colors: White, Black Wire length: 200mm Installation lock size: 56*38mm Feature: 1.Strong 3M glue, increase the sticking strength, grasp the veneer like a sucker 2.Thickened fixed head, easy to lock, non-locking, corrosion-resistant, not easy to rust, insulating rubber sleeve, make the whole more beautiful 3.The square base, upgraded 60 angle design, compared with the round base, the utilization rate of 3M adhesive is increased by more than 30%, and the bonding is stronger 4.Child safety: Keep curious children away from windows, doors, refrigerators, etc. to avoid injury. 5.Key unlocking: viscous window lock with strong load-bearing capacity. Equipped with 2 keys to unlock, if protected properly, children will not be able to obtain them. 6.Simple installation: no drilling, no special skills 7.Wide range of applications: perfect for doors, windows, refrigerators, etc., suitable for all kinds of smooth and dry surfaces. Package Including: 1pcs*security lock+1 pcs*key+ Sticker