Handy rear light from the brand Spanninga . The lamp is easily attached to the seat post of your bike with the flexible rubber band. The strap can be attached to seat posts with a diameter of 18 mm to 31.8 mm.
Specifications:
Color: black / red
Material: plastic
Size: 5 x 3 x 2.5 cm (L x W x D)
Lighting type: LED
Number of lux: 4
Weight: 20 grams
Suitable for attachment to the seat post.
Excluding two batteries (LR44).