CAP Barbell 40-pound Adjustable Dumbbell Set with Case WHATS INCLUDED  40 pound set includes two handles, four 2.5-pound plates, four 5-pound plates, 4 collars, and a plastic storage/carrying case. CONSTRUCTION  Durable cast iron plates have a semi-gloss finish offers a rust and maintenance-free product. Dumbbell handles are made from solid steel. FEATURES  Set features ergonomic grips, comfortable handles, and rubber trimmed collars. Collars are threaded for a secure fit to handles. v v VERSATILE  Dumbbells offer the ability to target specific muscle groups or get a full body workout. FUNCTIONAL  Perfect for isolations, full body, functional, and HIIT workouts. TRUST  Trust experience. CAP has been a pioneer in the fitness industry for over 30 years and has locations worldwide. Chances are, if you have ever worked out before you have used a CAP product.