The aluminum YoYoFactory 444 in a black and silver acid wash with red translucent hubstacks.
From yoyoexpert.com: "The latest release from YoYoFactory pays homage to some of their most legendary models while bringing something fresh and new to the table - The 444!
YoYoFactory has had some fun experimenting with the super lightweight throws and this new yoyo pushes it eve further. The 444 remixes the classic 44 with the perennial 888 design. Yes they are Hubstacks and Yes it still is still merely 44gm and it hits way above its weight. Lots of fun on the string, and Made in the USA!"
Of interest... To see all mini yo-yos in this museum, in the left panel, select Exhibits.
In the right pane, in the Name/Model field, type mini, then select Browse.