In 1941 the type of paper stapler that is the most common in use today was developed: the four way paper stapler. With the four way, the operator could either use the stapler to staple papers to wood or cardboard, or used to staple like pliers for bags, or the normal way with the head positioned a small distance above the stapling plate. The stapling plate is known as the anvil. The anvil often has two settings: the first, and by far most common, is the reflexive setting, also known as the "permanent" setting. In this position the legs of the staple are folded toward the center of the cross bar. It is used to staple papers which are not expected to need separation. If rotated 180° or slid to its second position, the anvil will be set on the sheer setting, also known as the "temporary" or "straight" setting. In this position the legs of the staple are folded outwards, away from the cross bar, resulting in the legs and cross bar being in more or less a straight line. Stapling with this setting will result in more-weakly secured papers, but a staple that is much easier to remove. The use of the second setting is almost never seen, however, due to the prevalence of staple removers and the general lack of knowledge about its use. Some simple modern staplers feature a fixed anvil that lacks the sheer position.