Widely used: 1. Write messages of 'please do not disturb','idle time' ,'please knock' at the meeting room; 2. Leave personal notes at home office; 3. Assign learning tasks at classroom; 4. Leave a quick night time message to your dorm mate; 5. Leave a personal note for their parents to say good night before going to bed; 6. Welcome Sign up at the store etc. Size: Message board 8.8(22.3cm) x 3(7.8cm) x 1.1(2.7cm) , dry erase markers 4.5(11.4cm) x 0.5(1.2cm). Package Includes:1 x LED light up door hanger with a black dry erase marker,8 x Dry erase markers(Pink, light green, light blue, blue, orange, yellow, red, purple) NOTES: 1. Due To The Manual Measurement, Please Allow 1-2mm Differences in Size. 2. Due to the Light and Screen Setting Difference, the item's Color May Be Slightly Different from the Pictures. 3.Remove batteries if product is not to be used for a long time. 4.ZESSISY PROMISED: If our product is lost or damaged in transit, please email us first, we promise reply problem solution within 24 hours. Thank you for choose ZESSISY.