Each ring is tight enough for the perfect amount of squeeze on your goods but still comfortable enough. With its thicker. stronger. and more resilient design stretches up to 5 times its original size (dont worry. it snaps back to its original shape and dimensions).Material: FLEX-TPRMeasurements: (Approximate)-Thickness: .5 inches-Outside Circumference: 5 inches -Inside Circumference: 1 inches -Weight: 1.2 oz