Steel. Chrome. And a touch of foam. This is recipe chosen to create the perfect adjustable dumbbells! Our Ultra Compact Synergee Dumbbells are sold in pairs and are available in 3 different weight options; and each individual dumbbell is equipped with 4 levels of weight adjustments.Choose between 10 lbs . 15 lbs . and 20 lb options. The 10 lb dumbbells can each be adjusted to 5 lbs . 7 lbs . 8 lbs . or 10 lbs. The 15 lb dumbbells can each be adjusted to 7 lbs . 10 lbs . 12 lbs . and 15 lbs. And the 20 lb dumbbells can each be adjusted to 10 lbs . 14 lbs . 16 lbs . and 20 lbs.The design of these dumbbells is genius: weight adjustments are made with a simple spin of chrome-coated steel plates. Each plate locks into place so there is no need for collars! The handles are coated in foam to provide a comfortable grip. Underneath that foam is strong steel that will last rep after rep. The weight plates’ chrome finish increases longevity and durability.From strength training to Pilates to barre . these dumbbells can be adjusted for all your workout needs!