This is a fixed spring, NH3 type. My family purchased it last year, but they're not going to use it, so I'm putting it up for sale. It's new and unused, but it's been stored at home, so please refrain from purchasing if you are looking for perfection or are concerned about minor details. I will wrap it in bubble wrap and ship it via Yu-packet Post Mini. If you have any questions, please ask in the comments section.