Abstract: Some embodiments are directed to a protective frame assembly. The frame assembly includes a first frame including an inner wall surface and an outer wall surface opposite to the inner wall surface. The inner wall surface includes a channel. The frame assembly also includes a second frame including a front wall surface and a rear wall surface. The rear wall surface of the second frame faces the inner wall surface of the first frame. The frame assembly further includes a spline received within the channel of the first frame. The frame assembly also includes a mesh sandwiched between the inner wall surface and the rear wall surface. The spline engages with the mesh within the channel to retain the mesh in a tensioned state.