An assembly to frictionally secure a material sheet to a surface or to cover an opening for any frame that includes a Base Piece secured to the desired area and a Clamp Arm connected to the Base Piece via a ball and joint allowing radial motion of the Clamp Arm. Using any standard flat-headed tool to apply force, the Clamp Arm can move to an open or secured position allowing repeated uninstall and re-install of a material sheet. Excess length of the Material Sheet is forced into the cavity in the Base Piece and hidden, avoiding the need for the Material Sheet to be cut to the exact smallest size to cover the area, giving the edges a straight, clean look, with the Material Sheet taut.