Body Solid SDRS550 Rubber Coated Hex Dumbbell Package w/ Rack And Rubber MatPackage Include: Body Solid SDRS550 Rubber Coated Hex Dumbbell Set 5 to 50 Lb Body Solid GDR363 3 Tier Dumbbell Rack Body Solid RF34B Bike Treadmat Body Solid SDRS550 Rubber Coated Hex Dumbbell Set 5 to 50 Lb Patent pending SDS 'Secure Dumbbell System' combines one piece cast heads with steel inserts, pinned, press fitted, and welded. Their compact design makes them shorter in length and easier to handle than conventional dumbbells. Durable rubber