This delightful little toy is fun for all ages. My girls love to play fight with them. I have had customers get creative enough to create a "darth acorn" with them. Great for any sci-fi fan. It is small enough to go on a key chain, yet big enough to play with. The finished product is 5 inches long. BASIC SKILLS NECESSARY knit icord GAUGE any gauge that is tight enough for the inner support to not come out is good enough. my gauge is roughly 5 sts to the inch.