The thermostat lock box with 2 keys can prevent tampering, damage, and unauthorized adjustment of the thermostat settings. Keeping your controller from annoying can protect your thermostat from high costs. [Size] House -type constant temperature box is suitable for most constant thermostats. The outer diameter of this thermostat lock box is 7.28 inch x 4.72 inch x 2.2 inch. The actual size is 6.5 inchH X 3.9inch W X2 inchD.IT D.IT as long as the size is less than or or equal to 6.5inch H x 3.9 inchW X2inch D, which meets all the shapes of the thermostat. Please check the size before buying. [Easy to install] Open thermostat guard allows installation without having to remove the thermostat from the wall. If you don't want to damage the wall, you can use nanohtin to bond (no residue), so your wall always looks like a new wall. [Material] Our thermostat cover is made of high -quality polycarbonate plastic. Very powerful. You can also resist yellowing or coloring. The lock -locking thermostat cover includes wall coverage to clean the appearance. Color: Transparent Material: plastic Package Contents: 1 x Thermostats Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.