Hello! It looks like they could have purchased that pendant from us. The perk of the Holophane Pendant is that it's wide bowl has a broad spread of white while the vents on the neck provide up lighting. They're also a stylish alternative to traditional gym lighting.

You can learn more about this light fixture here: http://www.barnlightelectric.com/pendant-lighting/barn-pendant-lights/barn-light-holophane-pendant-en.html

Another unique alternative would be this vented deep bowl pendant: http://www.barnlightelectric.com/pendant-lighting/barn-pendant-lights/the-wesco-vented-cord-hung-pendant-light.html

Hope that helps!

Yes that's right. These are the Holophane Pendants.

What happens when the ball hits the light? Do they have a rugged enclosure? Also, what is the wall covered with?