I've been using the RGP Swedish Stool with arms for over 12 years. After 32 years of full time dental hygiene, I truly believe this chair saved my career. My neck was my problem, so using arms has taken the stress off my neck and shoulders tremendously. This, plus good loupes and headlight, have improved my working life. As an instructor of ultrasonic instrumentation and ergonomics, I always suggest clinicians buy this chair for themselves. Best money I've spent on my career!