Durable elements stronger mechanical life,over 250,000 years of life,high quality and durability,giving you peace of intellect and retaining your place from intrusion.Easy to install:quick to install,including instructions.It can be fastened from 1 3/8 in.(35 mm) to 2 1/2 in.(64 mm) in thickness and requires a 1 1/4 in.(32 mm) diameter hole,wood or steel door for surface mounting.Any installation:can be installed indoors or outdoors,left and right doors.Easy to put in floor mount with out modificationSafety:Front door lock attitude anti-shock bracket with attitude affect for added safety,you can lock it with a key to protect your home.colour:yellowMaterial:metalSize:About 90*58mmPackage Contents:1 set *door locks2* keyOnly the above package content, different merchandise usually are not included.Note: Light capturing and assorted exhibits can cause the colour of the item in the photograph somewhat various from the genuine thing. The size allowed error is +/- 1-3cm.