Eleiko Loadable Dumbbell Bar 5kgSpace Saving Solution Barbell Design and Manufacturing in a Compact Loadable Dumbbell The Eleiko Loadable Dumbbell gives lifters incredible flexibility and control, a dumbbell with the familiar feel of a barbell. The Eleiko Loadable Dumbbell is essentially a mini barbell, designed to the specifications of our XF range of bars the dumbbells feature a 50 mm sleeve, a combination of bushings and bearings, a 28 mm diameter shaft and the 1. 0 knurling