BYZOOM FITNESS Pure Series Adjustable Dumbbell - 5-in-1/10-in-1/21-in-1 Flexible Hand Weights, 12.5/25/27.5/75 lb Options, Single Unit or Pair (select quantity), White or Black

- Versatile 5-in-1 Configuration: One adjustable dumbbell replaces five fixed weights, providing increments from 2.5 lb up to 12.5 lb — ideal for sculpting, toning and low-impact workouts. - Proportional Balance Across Weights: Patented length adjustment (8.66" to 11.14") keeps the handle proportional to the selected load, preventing the bulkiness of standard plates and preserving a natural range of motion. - High-Density Cast Iron Core: Solid cast iron center offers a balanced, professional feel with a slim, dense construction that avoids the clunky appearance of plastic alternatives. - Ergonomic Grip for Smaller Hands: Contoured handle is designed for a secure, comfortable hold that reduces hand fatigue and supports proper posture and form. - Instant One-Second Weight Changes: Shift intensities quickly with the 'Pull, Slide, Done' selector, enabling seamless transitions between exercises without collars or pins. - Refined Home-Friendly Design: Sleek white finish (also available in black) and a 15.55" tray keep your space organized while blending into living areas with elegance. - One-Year Extended Customer Support: Includes 12 months of dedicated support to provide extra assurance before and after your purchase.