These Dumbbells are the ideal item for your dog to play and train with. The Dumbbells are highly visible, make a great retrieval toy and also float on water, making them suitable for both land and water training. You can clean quickly. It can be cleaned and put into a cupboard. It does not occupy a lot of space and can be kept well.Made from a non-toxic rubber material, safe for your pet to play. Dumbbell shaped design for much fun.