... clear. 1) 7101: Ground edges2) 7102: Un-ground edges3) 7103: Single concave, ground edges4) 7104: Double concave, ground edges5) 7105: Frosted ... one end on one side, ground edges6) ... both ends on one side, ground edges8) 7107: Frosted one end on both sides, ground edgescontact us for more details ...