The Dumpster Fire is an aluminum design from Rain City Skills out of Vancouver, British Columbia. Yo-yo used a size C flat ball bearing axle that was heavily lubricated for responsive play out-of-the-box. You could install a half-spec size C bearing (and a shorter axle) to make the string gap narrower, if desired.
Note the odd concave inner wall on each halve.
Recipe Diameter: 54.4mm
Width: 33.2mm
Weight: 64.4gm
Bearing: Size C flat, heavily lubricated for responsive play
Material: 6061 aluminum