Size Chart - Ian
| Ian Size Chart | Mini | Small | Medium | Large | XL |
| Total Length | 5" | 6.5" | 7.75" | 9.25" | 10.75" |
| Insertable Length | 4.25" | 5.5" | 6.6" | 7.3" | 8.75" |
| Circumference of Head | 4.5" | 5.75" | 6.7" | 7.8" | 9" |
| Circumference of Medial Ring | 5" | 6.5" | 7.7" | 8.9" | 10.1" |
| Circumference at Base | 5" | 6.25" | 7.3" | 8.5" | 9.6" |
| Diameter of Head | 1.25" | 1.65" | 2.1" | 2.3" | 2.5" |
| Diameter of Medial Ring | 1.5" | 1.75" | 2.25" | 2.4" | 3" |
| Diameter at Base of Shaft | 1.5" | 1.7" | 2.32" | 2.35" | 3" |