Subject: Inflatable Dingy Beaching wheels?

Does anyone have any recommendation of type and source for this type of
wheels.

http://www.allinflatables.com/shoppi...om/wheels.html

I have the Easy Rollers and like them. I originally had the plastic roller type
about 6 inches in diameter and had problems on rough ramps. I have them mounted
on a 12 ft achilles.

Dennis