From the yoyosam website: "Zeekio has set a new standard for slimline yo-yos with the Slim Jim.
The Slim Jim was designed for the snappy responsive play. Just a little tug and the Slim Jim snaps back to your hand. If you want unresponsive action, the Slim Jim comes with an extra axle and bearing that make for wider string gap and unresponsive play.
Slim Jim's sleek slimline body makes it perfect for looping and it has a pull start friendly divot, and a soft blast for insane grinding tricks! Designed by Sean Collins exclusively for Zeekio.
Comes with an edible surprise.
Recipe Diameter: 56mm
Width: 30mm
Weight: 63.6gm
Response: 19mm pad
Bearing: Size C, half-spec for original, response play (also came with one wide axle and one full size C bearing for dead response play)
String gap: 3.25mm with size C half spec bearing
Material: 6061 aluminum