If you invest in a good quality scissor they can last you 10-20 years if you take care of them. That includes getting your scissors sharpened by a professional at least once a year. Every stylist should make it a routine to clean their scissors every day after work. It's important to blow the little hairs that are stuck in between the two blades near the screw. Then place a few drops of oil and put them away until your next haircut. Before you start your next cut don't forget to wipe off the oil from your scissor to avoid getting oil in your clients hair. Watch the short video.