The Martin Yale Letter Openers are very useful for binding, folding and cutting papers. These do not allow paper to stick together as they perfectly straighten them, also they stack up paper into an enclosed bin. The Martin Yale Letter Openers are flexible,immobile and convenient to use. They dry paper up to the size of 8 1/2’’ x 11 paper or half ream of 8 1/2’’ x 14’’. The Martin Yale Letter Openers are integrated with oil infused bearing which help in offering better performance when in use.