Infideals - 2015 SPECIAL DEALS!!! - 40 lbs, 50 lbs, 60 lbs - Adjustable Cast Iron Dumbbells with Solid Dumbbell Handles - Perfect for Home Gym System- Building Muscle! #1 on market 50 pound set includes two textured solid chrome handles, four collars (8 lbs), four 3 pound plates, four 7.5 pound plates. Collars are threaded for a secure fit to handles TOTAL WEIGHT of the set 50 lbs including the handles: You can set 20 lbs per side (to make it 40 lbs) or any combo from 0 - 30 lbs per one side (if one side is 30 lbs then the other is 10 lbs) TO ADD MORE WEIGHT, for LOWEST weight plates on Amazon, check ASIN # B00IHM82XA Holes on weight plates fit standard bar with diameter of 1". Dumbbell handle has 1-inch-diameter