Pretty Pro Kolinsky Acrylic Nail Brushes are made from 100% Pure Kolinsky Hair meaning they will not be affected by the acrylic monomer and will pick the bead up perfectly. The brushes are designed with wooden handles for a more comfortable and secure grip and the round shape of this brush makes it easy to get round the the cuticle area for a precise finish. Choose between a variety of sizes: #6, #8, #10 & #12. If you look after your brushes properly, they will last you years! Size 12