DiamondBack II
Manufacturer YoYoJam
Release date 2015
Shape Step Round
Color Light Blue
Weight 68 grams
Dimensions Diameter: 56mm
Width: 42.75mm
Material Aluminum with nickel-plated bronze rings
Bearing size Size C YYJ Large Speed
Response system YoYoJam Silicone O-rings
The DiamondBack II is a yo-yo released in 2015 by YoYoJam as a signature series yo-yo of Tylor "T-Mac" McCallumore.


As with the original DiamondBack, the new DiamondBack II is a bi-metal yo-yo, featuring an aluminum body with nickel-plated bronze midship weight rings. However, there are some changes to the yo-yo's design.

The midship weight rings were repositioned slightly, the center of the aluminum body was flattened, and more weight was added to the outer rims. In addition, the intricate diamond patterns from the old DiamondBack were removed by YoYoJam. This was done to keep up with changing standards, these which demanded clean lines and simple designs.

All of these changes make for yo-yo that not only has a clean, crisp look and is well-balanced, but also maintains the extraordinary control and long spins for T-Mac's lengthy tech combos. It comes included with silicone O-ring response and a large, 10-ball Speed Bearing for unresponsive play.