Our high-quality 20" olympic dumbbells are designed for home, gyms or offices. They fit olympic weight plates (50mm) and come with knurl grip handles for a better grip. Structure: Chrome plated dumbbell handle with Knurl gripping Features: Pair of dumbbell handles with easy spring locks, fits 50mm olympic weight plates Dimensions: 20 inch in length, 5.5kg each (Including Spring lock collars)