https://www.amazon.com/Andux-Folding-Stainless-Player-Lightweight/dp/B07PJZJ4YK
Hope this helps, the hardware is cheap and will strip soon but you will get months of life out of this thing. And it flips really well for being so cheap. And you could always lock tight the screws.
Would break pretty quickly, if you want a decent flipper for a little more ($28) theres this:
This one is good but if you want a heavy one go on my post you'll find the link there!😁😄
squidindustries.co or Amazon for cheaper. If you want a cheap, but good quality Amazon trainer press this link https://www.amazon.com/Andux-Folding-Stainless-Player-Lightweight/dp/B07PJZJ4YK/ref=mp_s_a_1_4?dchild=1&keywords=andux+balisong+trainer&qid=1627772938&sr=8-4