These are the Kizer Trimax Frames. They retail for around $60 US
They’re UFS and fit up to 110mm wheels. This makes them perfect for aggressive skaters interested in trying big wheels without spending a ton of money.
What makes the Kizer Trimax unique is that you can rocker the wheels. With all wheels flat, the wheelbase is 255mm. If you want better maneuverability, you can rocker the two rear wheels down. This makes a shorter effective wheelbase and creates a pivot point for tighter turns.