Hex shaped to prevent rolling Rubber-coated dumbbells are designed for indoor use, so we recommend keeping them out of direct sunlight Ideal for resistance training and physical therapy at home, office, or gym Weight number printed on cap for ease of identification Versatile for varying strength levels allowing for a customized workout Get that toned body on your terms with the flexibility and portability of these weights Manufactured from high quality materials and designed to ensure our dumbbells last you for years