MATHAYUS SIZE INFORMATION
Head circumference (cm / in) Check the measurements below to make sure you choose the right sized toy for your desires!
| Dimensions | Small | Medium | Large | Extra Large |
| Total Length (cm / in) | 20 / 7.87 | 23 / 9.06 | 26 / 10.24 | 30 / 11.81 |
| Usable Length (cm / in) | 16 / 6.30 | 19 / 7.48 | 22 / 8.66 | 26 / 10.24 |
| Head diameter (cm / in) | 3.3 / 1.30 | 4 / 1.57 | 4.5 / 1.77 | 5 / 1.97 |
| Middle diameter (cm / in) | 5.5 / 2.17 | 6.5 / 2.56 | 7.5 / 2.95 | 8.5 / 3.35 |
| Chassis diameter(cm / in) | 8 / 3.15 | 9 / 3.54 | 11 / 4.33 | 13 / 5.12 |
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