WUZHOU NOTE: Once you stick it in ONE PLACE; you should not move it to another place. Otherwise, it will lose its stickiness and the plastic cover will break. Proper use of 3AAA alkaline batteries can ensure the light lasts a long time and extend the life of the batteries. NOTE: when changing the battery, do not pull the plastic directly. Otherwise, the plastic holding the light will partially break. You should hold the plastic part and twist it clockwise, open it and install the battery, then close it. Stick and click, quick and easy light anywhere; With self-adhesive sticker on the back, can be easily attached to wood, plastic, metal, glass etc. No wiring required. Turn on/off the light by pressing the top of the lamp; 3 LEDs inside, super bright white light. 3 AAA batteries required. Delivery quantity: 10 pcs Package content: Only the above package content, excluding other products. Batteries are not included. Size: 6.5*6.5*2cm (Reminder: The size is measured manually, please allow 1-2cm measurement error) color: White (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown in the picture.)