We have been working very hard here at BruzZ to ensure that we can cover a wide range of nails with our BruzZ. We have decided to launch a range of firmer bristles for the customer who needs a stronger and harder bristle to get to that deep down dirt in their nails. So we welcome to our brand the FIRM BruzZ! The feedback so far has been fantastic and we would love to hear from you if you like them too! They are now available to buy on our website here.