Diameter: 19mm/25mm/30mm Length: 105mm/112mm Weight: 24g/35g/35g 700g/box Material : Rubber Diameter: 19mm/25mm/30mmLength: 105mm/112mmWeight: 24g/35g/35g 700g/boxMaterial : RubberAvailable: 3R,5R,7R,8R,9R,11R,14R,15R5F,7F,9F,11F,13F,15F3DT,5DT,7DT,9DT,11DT,14DT,18DT