The product is fine and a perfect fit. I paid extra for two-day shipping, but was never notified that they were on back order until another item in the same order arrived. There was no notification of when to expect delivery, etc. They showed up a few days later, shipped from elsewhere. I am annoyed to have paid for faster shipping which did not happen. The in-stock status and backorder notification from web site to delivery was just about nonexisted.

They're fine, but stick to a smooth floor like suctkon cups. Drilling a #50 hole from upper rim down into "cup" area fixed it.

Umm, are you really just giving this info out for nhoting?