The Duncan MomentuM is an undersized yo-yo, part of Duncan's Screaming Eagle line. Anodized and blasted, it is engraved on the rims with the MomentuM and Screaming Eagle logos but oddly there is no Duncan logo on the yo-yo anywhere.
The MomentuM has bearing sidecaps (both large disks and small caps are provided), and uses Duncan's recessed silicon stickers for response. Shown here in Gold, the MomentuM is also available in Red, Blue and Green.
Special thanks to Duncan for providing this exhibit.