Features 1. Thermostat Guard with key: Thermostat covers with 2 keys prevent tampering, damage, and unauthorized adjustment of thermostat settings. Keep your controllers away from unwanted access, protect your thermostat, and avoid unexpected energy bills. 2. Fits Most Thermostats: Compatible with most thermostats on the market. Suitable for use in homes, offices, churches, schools, and industrial environments. 3. Clear thermostat lock box is made of high-quality plastic that resists discoloration and yellowing, maintaining clear visibility of the thermostat even after long-term use. 4. Two installation options: Includes punch and no-punch methods. For a damage-free option, use the included nano tape (leaves no residue), helping preserve wall appearance. Specification Material: Plastic Color: Blue Size: 18.7 x 11.4 x 5.5 cm Weight: 310 g Package Include: 1x Thermostat Lock Box with Key