PATENTED GRIT TECHNOLOGY: Developed in 2004, our proprietary nail buffers gently buff imperfections without thinning or damaging nails, preventing cracks, splitting, and Defends against environmental stressors MOISTURE LOCK TECHNOLOGY: Your nails worst enemy is dryness. Our 4 sided nail buffer block locks in moisture and reveals a brilliant, chemical-free shine that lasts up to 10 days. Perfect for reversing dryness caused by acrylics, gels, and polish 4-IN-1 NAIL TRANSFORMATION: Smooth ridges, remove surface stains, buff for healthy circulation, and polish to a glossy, natural shine. Onsen nail buffer is ideal for both routine maintenance and “rebooting” nails after gel or acrylics SUSTAINABLE, COST-EFFECTIVE & INCLUDES EXTRA PADS: The durable buffing block is designed for years of use. Simply replace them as needed for a cost-effective, sustainable solution - no need to repurchase the entire block. Each buffer includes 2 extra white shine pads PERFECT FOR WEEKLY USE: Use Onsen 4 sided buffer once a week on fingernails and every two weeks on toenails. We recommend a 60-day “Nail Reboot” at least once a year to restore strength and vitality Achieve a salon-quality shine with the Onsen Secret Nail Buffer. This simple nail buffing block smooths ridges and leaves your nails with a long-lasting, natural polish without the need for chemicals. Ideal for both men and women, this 4 way nail buffer block is perfect for anyone seeking an easy, hassle-free manicure solution that delivers beautifully smooth and shiny nails with minimal effort.