The York 20kg 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. York 20kg Commercial Rubber Hex Dumbbells in Black