Printed ready-assembled, no assembly needed or possible :) This kind of product can only be produced by 3D printing.
Designed by me and printed by Shapeways in Nylon, on a powder-based SLS, and dyed red.
You can find it here https://www.shapeways.com/product/XSHHJLZJB/expandable-bracelet-light and have it printed and delivered to your door, in the material and color of your choice. Shapeways can even print in precious metals ¦:¬)
Or find the STL here https://www.thingiverse.com/thing:738638 and PIY (Print It Yourself)
