The Henrys Circus Diabolo mounted with the 'Ultra-Light' kid replaces the metal hub system and reduces the weight by 50g - However the same classic Circus shape is maintained. Plastic hubs also reduce string-wear to some extent. SKU:DIA-142 Axle Type:Fixed - Ultra-Light systemPlayer Level:Intermediate -AdvancedWidth:140mmBrand:Henry'sDiameter:130mmWeight:250g