80 pieces, sold as a set. Diameter: Approximately 3 cm (inner diameter approximately 26mm) Length: Approximately 45.5 cm These are for commercial use, so they are sturdy. You could probably make shelves or chairs with these. Instant purchase and silent purchase are welcome. There is another set available. If you purchase two sets, the price will be 3800 yen. (As of November 29th) #Gymnastics #Events #Recreation #Commercial Wrap Cores