Hoops sizes at TAP lab (all sizes in mm)
| Hoop | Design size | Actual size |
| A | 70×70 (circle) | 90×90 |
| B | 100×100 (circle) | 120×120 |
| C | 130×130 (circle) | 150×150 |
| D | 170×170 (circle) | 190×190 |
| E | 270×270 (circle) | 290×290 |
| F | 490×345 (rectangle) | 540×360 |
| G (magnetic hoop) | 110×110 (square) | 130×130 |