Lampshade Round V-shaped head. 

To make rigid lampshades, you'll need some materials.
To create a cylindrical lampshade or suspension: you need a round head (available here) and a round base of the same diameter (here). 
To make a conical lampshade, you need a standard inverted head (here) and the lampshade is placed on the lampholder from below6 or a V-shaped head and a larger round base (here) that is placed at the bottom. If you choose the V-shaped head that is placed at the top, the lampshade is held on the lampholder from above.

• Material: Copper-plated steel
• Colour: White epoxy
• Lampholder: E27 (for large screw base bulbs).
• Made in France