SET NANO, SMALL, STANDARD, MAXI V3 - BlackComes in an original & discreet package with 1 tube, 4 ring, 1 MagicLocker and 2 keys.Length inside the tube: 35mm (1.36 inch)Inside diameter of the tube: 34mm (1.3 inch)Number of air holes: 3Length inside the tube: 45mm (1.75inch)Inside diameter of the tube: 34mm (1.3 inch)Number of air holes: 3Length inside the tube: 55mm (2.14inch)Inside diameter of the tube: 35mm (1.4inch)Number of air holes: 3 Length inside the tube: 65mm (2.54inch)Inside diameter of the tube: 35mm (1.4 inch)Number of air holes: 3 Equipped with 4 rings Diameter 36mm (1.41inch) Diameter 40mm (1.55inch) Diameter 45mm (1.75inch) Diameter 50mm (1.95inch)