The Staleks Half Moon Mineral File Expert 40 180/240 Grit (NFE-40-180/240) is a half-moon file with 180 grit on one side and 240 grit on the other. 180 grit is a medium coarse strength, which can be used to file artificial nails, gel nails, BIAB nails or natural nails. 240 grit is a light strength, suitable for delicate work on natural nails, polishing and the final finish before applying a topcoat. This Staleks file works perfectly on artificial nails, gel nails, BIAB nails or natural nails. The shape of this file is a half-moon, with a curved side and a straight side, an all-rounder! The curved side allows you to easily file along the cuticles or file any nail line. The straight side is perfect for shaping the free edge of the nail or refining the top of the nail plate. You can also use the straight side to carefully correct the shape of natural and artificial nails without damaging the nail plate or leaving tiny cracks. This Staleks half-moon file has several high-quality features. The special coating on the mineral nail file prevents clogging of the sandpaper due to filing dust, and the file is made of a flexible plastic base with a thin layer of foam that reduces pressure on the nail plate.