Inquiry (采购产品): rubber ball bearing wheels My contractor has installed a series of hinged 2 foot wide folding doors between two rooms. It's a 12 ft. wide space and there are 6 doors that meet in the middle of the opening and then fold back to leave a completely open space. The floor is travertine. He installed steel ball bearing wheels under the middle door on each side to bear some of the weight but unfortunately it is scratching the stone floor. Do you carry a rubber or other type of ball bearing wheel that will not damage the floor? Thank you. **** Hidden Message ***** James Jackson 511 Bayshore Drive Apt. 307 Ft. lauderdale, FL 33304 USA Company: condo owner Title: Mr. Phone: 9544781072 E-mail: jjax18@aol.com **** Hidden Message ***** jjax18@aol.com