BLACK mCover Hard Shell Cover Case for HP Pavilion 14" DM4 series(DM4 / DM4t) Laptop Made of USA-made high-quality DOW polycarbonate material, which is shatter-proof and will protect your HP Pavilion DM4 laptop all around. Custom designed to fit the HP Pavilion DM4 series laptop perfectly 2-piece light-weight(10 oz or 280 g) shell easily snaps on and off. All ports, battery test button and charging port are accessible. Compatible with 6-cell and 9-cell batteries.