Pinching clips for shaping the arch of nail extensions, suitable for gel and acrylic. An improved spring mechanism provides a firm arch grip. Position a disposable nail form, build the nail and cure in a UV lamp for 1 minute. Once the gel starts to set, attach the clip to pinch the artificial material into the required shape. Return to the lamp to finish curing. Washable and disinfectable. Suitable for acrylic and gel extensions.