Yo-yo Info: Lots of generally useful information about yo-yos
Duncan Pulse:
The Pulse takes four batteries, two in each half, and they are Vinnic L1121 alkaline button cells.
Yomega Raider:
Bearing dimensions (IDxODxWidth): 5/32" 5/16" 1/8"
Most YoYoJam yo-yos:
The axle is usually 6-32 threaded rod.
Response pads and stickers:
| Name | Nominal size | Gross thickness (in) | Thickness of backing (in) | Net thickness (in) | ID (in) | OD (in) |
| Born Crucial Ghost Pad | Thick/Large | 0.0305 | 0.004 | 0.0265 | 0.565 | 0.825 |
| Dif-E-Yo Dif Pad | Thick .030" | 0.037 | 0.004 | 0.033 | 0.54 | |
| Chu Pad | 0.0135 | 0.006 | 0.0075 | 0.535 | 0.866 | |
| Kentaro Pad Dif-E-Yo | Dif-Pad sized | At least 0.021" | 0.535 | 0.85 | ||
| Duncan Silicone Stickers | 12mm Inside Diameter | 0.027 | 0.0065 | 0.0205 | 0.47 | 0.0865 |
| Duncan Friction Stickers | Woven base 0.013" | 0.43 | 0.83 |