Great for use as an addition to a low-impact cardiovascular routine or for strength training with free weights, the Tone Fitness Women's 5 lb. Cement Dumbbells are designed to help you perform a number of full-body workouts to help tone and sculpt your arms, shoulders and back. The dumbbells are made from cement and hard vinyl construction to provide durability. Tone Fitness Women's 5 lb. Cement Dumbbells, 10 Lbs - Free Weights/Bulk at Academy Sports