I wanted to let you know how much I love the new XP American Eagle instruments. I have been practicing dental hygiene for twenty five years and XP technology is the best I have ever used. I have always hated to sharpen instruments, mainly because of finding the time to do it. Now, I never have to worry because my instruments are always sharp! I have a mirror , explorer, probe and two XP instruments in my packs and that is all I need. My posterior and anterior XP scalers are all I need for any area in the mouth. Thank you Angie and American Eagle, goodbye sharpening stone!