This video will show you how to use the Hat Clamp to easily embroider on a baseball hat with a single needle machine! If you have questions about purchasing please visit the esty store listed, I do not sell these, I just created the video to show you how easy and WELL this Hat Clamp/Hoop works! As you can see I even did it all with one hand basically. You can purchase your's here: http://www.hathoop.com Or search on etsy.com for shop: hiddensafes