OQSPORT Folding Bicycle Auxiliary Wheel Booster Wheel(Black)Features 1. Brand new and high quality. 2. Item description: Folding bikes wheel roller booster wheels 3. Description: When you take the public transportation (green travel) in and out of the subway, train station or bus, you should fold up your bike and carry it by hand, otherwise it is forbidden to enter. With this kind of wheels, heavy bike embarrassed you don't have to hand up and down, tired, after folding the bike this wheels still can help you,

(20m) 5200x3900 pixels

Fit any device that have 3

High quality wear resistant and waterproof material

re on a laptop or desktop

Applicable cell phone size: 3-7 inch

Output power: 1-6W

One Package Size 17cm * 9cm * 2cm / 6

Applicable gender: both men and women

Input voltage range: DC8-24V

3D Over HDMI

Dimensions: the diameter of the lamp is about 9 cm

No need APP