Size Chart - Cyrus
| Cyrus | Mini | Small | Medium | Large | XL |
| Total Length | 5" | 6.5" | 8" | 10" | 12" |
| Insertable Length | 4" | 5" | 6.5" | 8" | 9.5" |
| Circumference of Head | 4.5" | 5.5" | 7" | 8.75" | 10.5" |
| Circumference of Shaft | 5" | 6.25" | 8" | 9.75" | 11.5" |
| Diameter of Head | 1.5" | 1.9" | 2.5" | 3" | 3.5" |
| Diameter of Shaft | 1.6" | 2" | 2.6" | 3.2" | 3.8" |
| Diameter at Shaft Base | 1.75" | 2.2" | 2.9" | 3.5" | 4.1" |