The York 22.5kg Rubber Hex Dumbbells are manufactured for use in commercial environments including gyms and sports clubs. They are also great for those looking for a premium dumbbell selection for their home gym.Sold as a pair, these high quality dumbbells feature ergonomically designed contoured knurled chrome handles and durable rubber covered heads for improved safety and support. The torque threaded heads are permanently affixed to a thick 35mm solid steel shaft which greatly improves the the strength of the head and handle joint compared to traditional rubber hex dumbbells.. The dumbbells have a hex design which prevents rolling. They also proudly boast the York name along with the 22.5kg weight marking.