TWINS 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 |
| Total Length (cm / in) | 15 / 5.9 | 19 / 7.5 |
| 18 / 7.1 | 23 / 9.1 | |
| Usable Length (cm / in) | 13 / 5.1 | 16 / 6.3 |
| 15 / 5.9 | 19 / 7.5 | |
| Head diameter (cm / in) | 3.5 / 1.9 | 4.5 / 1.8 |
| 4.0 / 1.6 | 5.0 / 2.0 | |
| Tail diameter (cm / in) | 3.0 / 1.2 | 4.0 / 1.6 |
| 3.0 / 1.2 | 4.0 / 1.6 | |
| Chassis diameter(cm / in) | 10.5 / 4.1 | 13.5 / 5.3 |
| 10.5 / 4.1 | 13.5 / 5.3 | |
| Head circumference (cm / in) | 12 / 4.7 | 13 / 5.1 |
| 15 / 5.9 | 16 / 6.3 | |
| Thickest circumference(cm / in) | 12 / 4.7 | 13 / 5.1 |
| 15 / 5.9 | 16 / 6.3 |
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