Louet Hand Carders - Cotton These extra-fine cards contain 110 teeth per square inch and are perfect for cotton and other fine fibers. Cards measure 19 x 10 cm (7 1/2" x 4") . Louet hand cards & combs are made of tulip wood, a Dutch Poplar variety. These light-weight hand cards have a curved back and ergonomic handles that fit comfortably in your hands. In order to ensure a long life, the teeth on all Louet carders are made of high grade plated steel wire.