KINK3D base rings should be worn around the penis and testicles (similar to a cock ring), sitting flush with your pubic area. If you're having trouble putting it on, we recommend inserting one testicle through at a time and inserting your penis last.
Standard Rings: 8 mm thick. These work for most people.
Rings come in eight sizes, from about 38 mm to about 60 mm diameter
Size 0 is very small. If you're considering Size 0, we recommend trying Size 1 first unless you're really sure.
Sizes 6 and 7 are very large. If you're considering them, we recommend trying Size 5 first unless you're really sure.
Internal ring diameter
7 XD: 60.3mm
6 XD: 57.2mm
5 XD: 54mm
4 XD: 50.8mm
3 XD: 47.6mm
2 XD: 44.5mm
1 XD: 41.3mm
0 XD: 38.11