This model has the following features: FEATURES Latex-free and shatter-resistant material Available in blue with grey border and black base Supports up to 159 kg (350 lbs) Weighs 9 kg (15 lbs) 65 cm (20 in.) diameter and 25.4 cm (10 in.) high when fully inflated Double overmoulded black platform for added strength Includes hand pump and owner's manual Smooth, non-slip, non-marking base While the Bosu Balance Trainer -2893 : Latex-free and shatter-resistant material Available in blue or pink with grey border Double overmoulded black platform for extra strength Smooth, non-slip, non-marking base Supports up to 159 kg (350 lbs) Weight: 9 kg (15 lbs) Diameter: 65cm (65") Height: 25.4 cm (10") when fully inflated Includes hand pump In general the next gen has a more non-slip surface. It also has quadrants that allow for precise body positioning and markings.