I'm 6'6" tall and weigh 260 pounds. Most office/work/computer chairs are too small for me. 1" legs (like almost all chairs that Staples sells). They don't screw in; they slip easily (and fall out just as easily if you decide to lift the chair.) But they also add a WORLD-CHANGING five inches to the seat height, allowing me to sit comfortably with a few inches more! The combo was IMPOSSIBLE to find. It's a fitting runner-up.) They're durable, industrial, and cheaper than others I've seen. Like. :)