Thermostat Guard with Key, Thermostat Cover with 2 Keys prevents tampering, damage and unauthorized thermostat setting adjustments. Keep your controllers away from unwanted access, protect your thermostat and avoid high bills. The outer dimensions of the thermostat guard with lock are 7.3 inches x 4.7 inches x 2.2 inches, and the inner dimensions are 7 inches x 4.5 inches x 2 inches, which fits most thermostats on the market. It can be used in home, office, church, school, and industrial environments. Long service life, maintains clear visibility inside even after long-term use. There are two installation methods: drilling and nano adhesive. If you don't want to damage your walls, you can use nano adhesive for bonding (no residue) to preserve wall integrity. Color: White Material: Plastic Package Contents: 1 x Lock Box 2 x Keys 4 x Screws 4 x Expansion Tubes 1 x Nano Adhesive Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement allows an error of +/- 1-3 cm.