LED Wheel light (fits on valve)

My son asked me to make him some lights for his wheels on his bicycle.

This uses a standard 5mm LED and 3 x AG10 coin batteries. Just push a little wire down the bases shaft until it protrudes out into the bowl where the batteries go. The batteries are inserted with the +ve to the top. Push the shorter leg of the LED through the filler plate hole and bend it 90* and trim it off. Bend the long leg 90* outwards and again 90* down when you reach the brim of the cap. This long leg meets the wire