Body-Solid Olympic Dumbbell Handle OLDHOlympic dumbbell handles are without a doubt, the most heavy duty, functionally smooth dumbbells on the market. An important addition to every strength conditioning program, these dumbbells are perfect for those whose workouts require a variety of exercises. Olympic dumbbell handle 2 collars included Ergonomic anti slip handle Read more below. Dimensions Space for plates: 18 cm on each side Product: L 51 cm Package: L 56 x W 9 x H 9 cm Handle: 12. 2