"Wholesale vibrator cock ring" is the entry requirement, stick in the domestic standard is 3.5 cm in diameter, is 4 cm abroad; built aircraft cup aperture is generally 2 cm. But the market is still substandard "Wholesale vibrator cock ring". Some stores sell length of nearly 30 cm turn beads stick, while the Chinese women vagina average length between 8-10 cm. "Wholesale vibrator cock ring" ergonomic construction means more than just the right size, but also make the product more aesthetic. Sweden LELO launched after 2003, there have curved stick, fit body parts (ergonomics) and simulation models of Japanese style points.