The timer is made of plastic, and it is safe and non-toxic. It is suitable for household appliance, advertising board, road lamp and so on. The timer is anti-interference, easy to use. Features: STRICT STANDARD --- The timer is accurate with industrial grade chip, easy to use and will be your practical tool. DURABLE&RELIABLE --- This Smart Timer can be used repeatedly and durable for long time use, your best choise. EXCELLENT PERFORMANCE --- The timer is anti-interference and store the message automatically, more convenient to use. HIGH QUALITY --- This kind of Digital Timer is made of quality plastic material, safe and non-toxic, odorless and durable. WIDELY USE --- Suitable for household appliance, advertising board, road lamp, neon light and so on. Specifications: Condition: 100% Brand New Material: Plastic Color: Black, White(Optional) Size: approx. 7.5*5*12cm/ 2.95* 1.96* 4.72in Weight: approx. 154g/ 5.43oz Setting Time: From 1min to 168 Hours Number of Times: 17 Times(Day/ Week) Power-off Memory: 60 Days Voltage: 220V Battery: Built-in Battery Package List: 1* Timer 1* User Manual Notes: 1. Please allow 0-2cm error due to the manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. STRICT STANDARD --- The timer is accurate with industrial grade chip, easy to use and will be your practical tool. DURABLE&RELIABLE --- This Smart Timer can be used repeatedly and durable for long time use, your best choise. EXCELLENT PERFORMANCE --- The timer is anti-interference and store the message automatically, more convenient to use. HIGH QUALITY --- This kind of Digital Timer is made of quality plastic material, safe and non-toxic, odorless and durable. WIDELY USE --- Suitable for household appliance, advertising board, road lamp, neon light and so on.