The rubber coating may have a slight smell that will go away once out of the box and from use., Encased Product Description Our high quality Rubber coated Cast Iron Hex Dumbbells are perfect for at-home and commercial gym use. They come in a range of sizes, from 2.5KG all the way up to 30KG, in increments of 2.5KG - sizes perfect for you, no matter what your strength and fitness levels are Our high quality Rubber coated Cast Iron Hex Dumbbells are perfect for at-home and commercial gym use. The Benefits of Hex Dumbbells, According to a Fitness Expert Dumbbells 10kg Pair Signature Fitness Rubber Encased Hex Dumbbell, 5LB Pair 12.5kg Dumbbells There is a smell that I think is coming from the dumbbells, are they safe? On the rare occasion that this happens its simply just from where it has been stored for a while in the warehouse. Rubber Hex Dumbbells (Pairs) | 50 lb pair | Vesta Fitness Only one dumbbell has arrived, what should I do? Rest assured, you will receive both dumbbells!, Any orders of 12., 5kg and up will arrive as one dumbbell per box. The rubber outer coating acts as a protective layer to absorb impact when put on the floor and also reduces the noise.