The NEW Patent Pending Z-WIDE Efficiency fan brush was created for quicker and more even nail polish application to medium and large size nails. The Z-WIDE brush contains 60% more bristles than the Zoya Z-Classic precision brush which is the professional default brush that comes with Zoya Nail Polish and Treatment. Bonus ? the new Z-WIDE brush fits all Zoya 0.5oz bottles so switching is easy!