About this item Cast iron construction: Philosophy Gym kettlebells are made from premium quality solid cast iron and encased with an industrial vinyl coating to protect from any corrosion. This coating provides strength and durability to withstand indoor and outdoor training. Vinyl coated finish: These kettlebells have been encased with vinyl to prevent corrosion, reduce noise, protect flooring, and enhance appearance. The weight of the kettlebell is marked in pounds to be easily identified during your workout. Wide, comfortable handle: These vinyl kettlebells are designed with a wide handle for your safety and comfort. The wide handle also allows for a secure grip when using your kettlebell. Flat bottom: The flat bottom design provides stability of the kettlebell, making it easy to switch hands or perform specific flat bottom exercises like push-ups. The flat base allows for easy storage, and can be placed securely down. Multi-functional: The vinyl coated kettlebell supports a wide range of resistance training exercises and is perfect for full body workouts. These kettlebells can be used for strengthening and toning muscles with classic exercises like swings, deadlifts, and squats. They are available in a variety of different weights to best suit your fitness needs from 5 pounds to 50 pounds.