They vary in size from 2.5 inches to 4 inches. What I do is just put the blades on when I get out into the blind. That way the arrows fit into the quiver. Once the blades are on I set them off to the side out of the way until they are needed. Last year was my first year bowhunting and I could not have been happier with their performance. I shot a bearded hen at 20 yards and it only dropped a couple inches. Poor thing never even knew what hit her. In my book by far the most humane kill I have ever seen on ANY animal. Also if you miss theres nothing to worry about except a really wary and slightly bruised turkey.