CAST IRON HAND WEIGHTS NEOPRENE DUMBBELLS: Yes4All high quality Neoprene Dumbbell will not break or bend after repeated use. Neoprene is also more durable & less prone to splitting than vinyl, making it a more desirable choice for long term use | NON SLIP FREE WEIGHTS NEOPRENE: Thick durable neoprene coating provides a comfy grip on hands and doesn require gloves. The neoprene coating forms a protective barrier that prevents the dumbbells from chipping and protects the floor from damage | COLOR CODED NEOPRENE DUMBBELL WITH ANTI ROLLING HEAD: Color coded free weights neoprene dumbbell with printed weight number on the end caps for easy identification. Hexagonal head prevents rolling away from the storage place or during your exercise | GREAT FOR TOTAL BODY WORKOUT: Yes4All Neoprene Dumbbells are ideal to sculpt your arms, shoulders & back, build stamina & speed up metabolic rate. Perfect for overall health, balance, weight management, aerobics, cardio, yoga, and strength building | VERSATILE & MULTIPURPOSE: Easy to store and perfect for travel. Use for your indoor or outdoor workout regimes. Great for arm rows, squats, chest presses, bicep curls, walking, jogging, & yoga