Experience the ultimate fitness transformation with the SQZ Pilates Ring - the first ever weighted AND flexible fitness ring, weighing 4 pounds with a silicone exterior. Use it to engage your core, add resistance, use as a weight, or advance your regular magic circle to a weighted magic circle. Details: 14 inches diameter 1.7 inches thick color options deep ocean is more navy blue and shadow has a black and matte tint in the blue color. made of luxury grade silicone heat resistant, sweat resistant, pilates prop for heated pilates, heated sculpt, heated yoga, heated mat class