Precise nourishment and volume control with the roller ball 360 Rotating Roller Ball: The rounded roller ball fits the curvature of the nail surface, releasing the treatment essence evenly, avoiding over-application or staining of the hands, and absorbing every inch of the fingertips with precision. Highly effective penetrating formula: Contains vitamin E, squalane and plant essential oils to deeply moisturise the nail bed, repair dryness, ingrowns and brittle nail edges, and strengthen nail health. Flexible combination of 1-3 pieces, according to the need to choose Single pack: lightweight and portable, suitable for daily on-the-go reapplication, or as an emergency care in the office or travelling. Double/Triple packs: can be combined with different functions to meet the needs of all-day nail care, or shared with family and girlfriends. Nourish on the go Mini size: The rollerball bottle is about the size of a lipstick, so it can easily fit in your pocket, make-up bag or handbag, and can be reapplied at any time during your commute, business trip, or at the gym. Leak-proof sealing design: The ball cap fits tightly to prevent the essence from leaking out, keeping the bottle and the bag tidy. Refreshing texture, no burden experience Moisture non-sticky: the serum texture is light and thin, quickly absorbed after application, no residual oil film feeling, does not affect the subsequent typing, writing or holding objects. Mild formula: alcohol-free, non-irritating ingredients, sensitive peri-nail skin can also be used with peace of mind.