Abstract: The nail form device of the present invention comprises an integral structure having a forward portion and a rearward portion. The forward portion has an upwardly convex surface for supporting the synthetic nail which is to be attached to the natural nail. The rearward portion has a downwardly concave surface for supporting the finger to which the synthetic nail is to be attached. An opening is positioned in the upper portion of the structure and has a forward edge formed by the forward portion and a rearward edge formed by the rearward portion. The opening is adapted to receive the forward portion of a finger with the forward edge of the opening being adapted to insert beneath a portion of the natural nail. The forward portion gradually tapers to smaller dimensions away from the opening, and provides a removable support for the nail extension.