Buffs enhancements to a brilliant, glass-like shine. Featuring a sturdy 1/2-inch thickness, the FLEX Shiner XL 1000/4000 Buffer shines faster and with less effort than ever. It offers a firmer buffing surface allowing more file pressure to finish natural nails and enhancements with a brilliant, glass-like shine in seconds. Use the violet 1000-grit side first, followed by the white 4000-grit side for shine in less time.