Mavala Stop Pen is a 4.4ml nail care product designed to help prevent nail biting and cuticle picking. This convenient pen-style applicator from the Swiss brand Mavala offers an easy-to-use solution for those looking to break these habits. The product comes in a pen format for precise and convenient application. The formula is specially developed by Mavala, a respected Swiss brand known for nail care products. The 4.4ml size makes it portable and practical for regular use throughout the day.