Primeline Premium Small I.D. Speargun Band Rubber Tubing 9/16in(14mm) O.D. 1/16in(1.5mm) I.D. (Select Color and Length) 9/16in(14mm) Outside Diameter x Small 1/16in(1.5mm) Inside Diameter 75% lower internal volume means more rubber and less water incursion for superior performance. Manufactured by Primeline Industries, the world leading manufacturer of speargun tubing. Color and Size: (Select the Color and Length) Manufacturers Diameter Tolerance: +/- 0.02 in