The Reebok vinyl dumbbells are invaluable in strength training, endurance workouts and building major muscle groups. The potential for strengthening and toning is limitless with dumbbells since they provide access to a stunning exercise selection for the upper and lower body muscle groups like bicep curls, lateral raises, skull-crushers, triceps kick-backs, lunges etc. you simply cannot go wrong with Reebok dumbbells. Additionally, they are manufactured to last with cast iron core and extra-resistant vinyl coating, whereas the flat sides of the hexagonal shape make sure they won’t roll away when placed on the floor. The dumbbells are easy to use and provide a firm, confident grip during dynamic movement, plus they’re conveniently supplied as a pair.