Measure the length and girth of your manhood with the Peni Haka-ru Penis Ruler. Simply line up your member against the scale to learn its length, then slap it against your shaft to get the approximate circumference. Thickness is measured against the ruler's proprietary scale, where black means thin and red means thick – just note the point where the ruler completes its circuit around your rod. This is a great toy for both individual men and couples to enjoy together.
The Peni Haka-ru Penis Ruler features: