Give your steel folding chairs extra stability when you add national public seating's v-tip caps. The polypropylene caps fit on the top of the back legs of your folding chairs and reduce wobbling by preventing metal-on-metal friction. This pack includes 100 caps in your choice of color. These caps fit all national public seating folding chairs with a 7/8" thick tubular steel frame.polypropylene caps come in many colors. material polypropylene. weight 2 lbs. color beige.