A Great Starter Set: Stop limiting your range of motion with bulky bars! Our 16-inch loadable dumbbell handles provide the perfect balance of space and maneuverability. This set includes 2 solid steel Olympic handles and 4 spring collars. The bar has a 25mm handgrip diameter. Each bar weighs 8.3 LB unloaded, ready for your home gym workouts right out of the box. Heavy-Duty Solid Steel: Built to withstand your toughest training sessions. Unlike fragile, hollow alternatives, these durable bars are constructed from premium solid steel with a high-quality chrome finish to resist rust and corrosion. Each handle boasts a strict weight capacity of up to 100 LBS. Fits 2-Inch Olympic Plates: Maximize your existing equipment! These 50mm diameter sleeves are fully compatible with standard 2-inch Olympic weight plates. Easily create your own adjustable dumbbells on demand, saving you the massive expense and storage space of buying a full rack of fixed dumbbells.