\nAbout This\n\nMaterial-High quality and high density foam rollerProvide soft, comfortable and strong support.\nCompatibilityStrength training equipment, the outer diameter of the test tube suitable for sponge covering is 1inch / 2.5cm. The length is 5.12inch / 13cm, and the thickness is 1.9inch / 4.8cm,the hole diameter is 0.87\