Our rubber encased TROY pro style dumbbells are all pre-assembled to ensure that they meet the standards required in heavy use commercial applications. All of our pro style dumbbells use solid steel bolt design; bigger, longer and stronger than the competition. These dumbbells consist of straight or contoured handles that feature special deep set knurling for functional performance and our top of the line TROY rubber encased plates. The rubber end caps include the TROY name and numbers for easy identification. Available in 2.5 lb. increments starting at 5 lbs. up to 52.5 lbs. and in 5 lb. increments up to 120 lbs.