These Clip And Go jump cups are molded without sharp edges and clip onto 3/4 inch Internal Diameter ( or approximately 1 inch Outer Diameter ) PVC in seconds. If purchasing PVC from your local building supply store, the PVC will be labeled 3/4"
The Cups allow the jump bar to be set multiple at heights by sliding the cups up and down the uprights.
The Cups are sold in packages of 10 for the price shown.