CORTEX Power bags are excellent training tools, great for safe strength training as it sits comfortably on shoulders and can be easily handled with heavy duty seat-belt like handles. Features - Strong heavy duty PU Leather - Filled with a blend of Sand & PP Cotton - Durable Strap handles for easy handling - Colour coded for different weights - Perfect for strength, speed, explosive movement training - Won't damage flooring when dropped Weights & Sizes 5kg - 50.5cm x 19.5cm (L x Diameter) 10kg - 54cm x 21.5cm (L x Diameter) 15kg - 54cm x 21.5cm (L x Diameter) 20kg - 60cm x 23cm (L x Diameter) 25kg - 70cm x 27cm (L x Diameter)