Proshade/Caravan/Costco Canopy Leg adapter for Umbrella Mount

Adapter to allow you to connect portable canopy feet to umbrella cement holders. This canopy is from Costco. Should fit:

http://www.costco.com/Caravan-10-ft.--x-10-ft.-Aluminum-Frame-Pop-Up-Canopy.product.100243711.html

and the ProShade:

http://www.costcochaser.com/blog/proshade-10-x-10-folding-canopy/

model.

Connects the feet to outdoor cement umbrella stands.