Features:
1. Energy storage during the day, light at night, easy to identify at night, to prevent loss.
2. The design of four holes makes it easy to adjust the size.
Selling point
1: No need to charge, brighter and brighter under the sun; Selling point
2: Easy to identify at night to prevent loss; Selling point
3: Strong and durable; Selling point
4: Four-hole design, easy to adjust the size;