The professional mineral nail file Staleks Expert 40 Boomerang (Grit 150/180) was designed for nail stylists who require maximum precision and delicacy during the technical finishing and natural nail preparation stages.
Technology and Performance
This variant stands out for its combination of medium and soft grit abrasiveness. The 150-grit side is perfectly suited for working with finer artificial nails or for filing and shaping thick natural nails. The opposite side, with 180 grit, functions as an excellent multi-purpose abrasive, ideal for shaping natural nails, performing light buffing, and preparing the entire nail plate for bases, gel polish, or gel. Its half-moon (boomerang) shape offers a curved side that safely contours the cuticle, and a straight side ideal for free edges. It also features a special coating that repels organic dust, ensuring the abrasive does not clog during professional use.
Technical Specifications
Product type: Mineral nail file
Colour: White
Size/Dimensions: 162*25 mm
Grit: 150/180
Product shape: Half-moon (Boomerang)
Disinfection and sterilisation: Single use
Highlights, Care or Additional Benefits
Balanced action: Ideal for a perfect transition between technical material buffing and natural nail protection.
Nail plate protection: The thin inner foam layer absorbs mechanical shocks, reducing impact and pressure on the nail matrix.
Groove-free finish: Precisely corrects the shape without damaging the structure or creating micro-fissures in the nail.
Expert Tip
Use the 180-grit side to carefully remove the natural shine from the nail before primer application, ensuring perfect adhesion without wearing down the keratin layers.
Use the 150-grit side to file thicker natural nails or to finish acrylic or gel surfaces.
Switch to the 180-grit side to give the final shape to the free edge of natural nails or to perform a gentle pre-coverage buff.
Gently slide the curved area of the file along the cuticle contour to level new growth.
Always work with fluid movements and in a single direction to seal the nail tips.
As a disposable item, discard the file in appropriate waste immediately after use.
Single-use and strictly disposable product; reuse on different clients is prohibited.
Store in a dry, ventilated place, completely out of reach of children.
Keep the item stored at a minimum distance of 1 metre from enclosed heat sources.
Store at stable temperatures between +5 °C and +25 °C, with a maximum relative humidity of 80%.
Do not expose the file to wet surfaces or liquid products before the procedure.
Avoid contact with corrosive or active chemical substances.
Follow the instructions on the packaging or provided by the professional.
Latest update: 2026-07-18 15:14:27
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