PROFLEX Sound Control 195 sq ft Premium 70 mil Flooring Underlayment Lawn MowersElectric 5 MPH reverse zero turn controlled 5 MPH reverse zero turn controlled ground speeds ) 6 1 2 Number of Batteries Included 1 Batteries Included Yes Bevel Capacity 50 Motor Type Brushed Cordless Tool Type Circular Saw Charger Included Charger Included Blade Diameter 6 1 2 Product Width (in stone or wood floor coverings It also helps to prevent existing or future cracks (with movement up to 3 8 in) from transmitting through ceramic tile or natural stone installations After installation and crack suppression membrane SSC 70 reduces transmission of impact and airborne sound through floors when installed under ceramic tile