Again a style of form very rarely used, and very difficult to use because of the materials used in their construction. The sculpting area of a reusable form is usually made from a thick inflexible plastic or metal making it more difficult to fit under a natural nail. Very difficult to pre tailor to different hyponychium shapes, and once you have managed to pre tailor its stays that shape and can’t be used on any other nail types adding extra cost to the service.