[Premium Quality] Made from solid cast iron and encased in durable rubber, these dumbbells offer exceptional longevity and reliability for your workouts. [Anti-Roll Design] The unique 6-sided shape of the dumbbells prevents them from rolling away, providing enhanced stability and safety during your exercise routines. [Comfortable Design] Featuring chrome ergo handles, these dumbbells ensure a comfortable and secure grip, making your lifting experience more enjoyable and effective. [Floor and Equipment Protection] With a rubber coating that resists cracking and fading, these dumbbells safeguard your floors and equipment, maintaining their pristine condition. [Versatile Weight Options] Available in weights ranging from 1kg to 15kg, these dumbbells accommodate all fitness levels and add versatility to your workout routines.