Jana Nails Extreme Paper Forms with Aluminium 100pc £17.99 Quantity: at £17.99 each Add To Basket 1 in stock. New extreme form reinforced with aluminum! Design by: Jovana Bačanac, master international educator for JN brand. Specially designed for extreme shapes & lengths. Marked with numbers and letters and clear lines and cross-sections for making it easier to sculpt and make extreme long nail form. The length of the entire form is 14 cm.