The IronMan 40lb Cast Iron Adjustable Dumbbell Set comes with a FREE heavy-duty carry case which contains a pair of 14(35cm) standard dumbbell handles, four 5 lb and four 3 lb grip style cast iron weight plates, four spinlock retaining collars for easy plate changes. Each dumbbell with half of the weights adds up to 20 lbs for a total of 40 lbs, this includes the weight of the dumbbell handle. Target and tone specific muscles. Made of chrome solid steel for sturdy, long-lasting quality Features knurled hand grip for solid grip control Spin-lock collar design for easy and convenient weight changes Handle accommodates and supplied weights are 1" standard hole Great for building and strengthening muscles in arms, upper body and triceps For residential use only Product Dimensions: 15L x 7.5W x 7.5H