Perfect Fit has introduced the first cock ring sizing system that is designed to provide a comfortable fit without excessive pull, while still offering sufficient restriction for effectiveness.

Features:

Ring Number 17: 1.7 inches in diameter, 5.3 inches in circumference
Ring Number 18: 1.8 inches in diameter, 5.7 inches in circumference
Ring Number 19: 1.9 inches in diameter, 6 inches in circumference