All vibration deadening mat should be rolled with a roller, because pressing mats with your hand or using plastic roller will not make vibration deadening mat work as it should be.
Squares on deadening mats are made to identify whether the mat is rolled or not. This is a must have tool for every installer.

This roller has a bent metal arm in order to make job easier and your wrist will not be tired fast.

Width: 35 mm
Roller´s diameter: 20 mm
Length: 19 and 31 cm.