The standard stiffness Millennium blades are manufactured in green or black Moplen polypropylene plastic. The blades are 746mm long and 223mm wide, with a variable thickness from 5.0mm to 3.0mm. Suitable for all around diving less than 80ft 1 - Omer-Sub interchangeable foot pocket has been designed and developed internally by our technicians and it is manufactured with newest rubber compression molding technologies existing today. The foot pocket is produced with natural rubber in two different stiffness compounds throughout the different sections of the pocket to maximize the efficiency of the stroke without compromising comfort. 2 - The internal geometry of the foot pocket, thanks to the great experience of Beta Tools in the production of safety shoes, has been ergonomically designed to fit with total comfort. 3 - The design optimizes canalization of water on its surface and maximum impact resistance at the edges. Three reinforcing ribs have been added under the heel to increase the stroking power.