JY-390T is a rear light. The bracket is suitable for most common seat post.

• Bicycle Rear Light

• 5 pcs Red LED

• Conform to CE standard

• Function: Steady-3 Flash-Off

• Fit for seat post diameter Ф25.4-Ф31.8mm

• Battery: AAA*2 (Not Include)

• Weight: 38g

• Size: 61x35x29mm

• Color: Black