1. Batteries design, no wiring is necessary.
2. Easy installation without tool.
3. Using AAA 1.5V batteries x 2pcs.
4. Optional design to perform tender light.
5. Light on both sides.
6. No heat is generated when LED works and power consumption is very low.
7. Universal design. Fit for the distance within 11.5cm~15.5cm(4.5"-6") between two poles of headrest.
1. Color: blue, white, green, red, yellow. 2. Housing: ABS. 3. Lens: PMMA.