Sound Deadening Roller making car insulation work a breeze. And it also allows the tire and tube patch to adhere completely during maintenance. Material: Roller：metal Handle: wood Package: 1 x 0.24 inch(6mm) Roller 1 x 1.57 inch(40mm) Roller Note: Please check the dimensions carefully before buying. The Roller handle is made of wood, the rolling wheel is made of metal. It can be used on any sound-deadening mat, making the sound insulation pad be mounted more effectively. Compact and easy to carry. PACKAGE: 2 different sizes of sound-deadening roller to meet different needs. 2-year warranty! Any questions, please feel free to contact us.