Inquiry (采购产品): Plastic Tubing I am looking for Plastic cuplings that will fit on the base of Chairs. These Chairs have a Steele frame and the Plastic allows it to slide smoothly on Carpet. The Steele Rod of Chair is 1" in diameter. Cuplings are circular with a nipple in the middle and open at top. Any information would be greatly appreciated. Phil Graham **** Hidden Message ***** Phil Graham M8Y 3H9 Company: C J Graphics Inc E-mail: reception@cjgraphics.com **** Hidden Message ***** reception@cjgraphics.com