This set of dkn rubber hex dumbbells contains pairs of 15kg 20kg and 30kg weights which have an anti roll hexagonal design and are tough and durable to withstand intense workouts the pinned heads ensure great durability and the knurled handles are ergonomically contoured and made from chrome plated solid steel so you can grip them well the cast iron heads come coated with high grade rubber which increases their durability and protection these easy to clean dumbells are suitable for domestic