about ,75 0f an inch..not real good with all those little lines on the tape measure.it comes to one of those little lines before the inch mark.sorry.i knit,so i know how important measurements are.i can crochet but i have a devil of a time with turning the work.the four fancy buttons are an inch as well.for some reason my answer wont register.and you're not a bother.you have an interest in the items and have questions and so i am glad to answer.thank you for your interest.i appreciate it.go safely sheila