Pierce Lock is Chrysmela Catch's sister product and low-priced version. Only difference between Christmela catch and Pierce Lock is that Chrysmela catch is coated by rare metals such as Rhodium (for silver color), 24K Gold (for gold color) and Pink Gold (for pink gold color). Pierce Lock is not coated by rare metal and the color is original Titanium Color, which is similar as silver.
There is no diffence of function and shape between Pierce Lock and Chrysmela, both strongly hold the yearings as heavy as 8kg. Pierce Lock is only sold in Japan. (that's why you cannot find it in Amazon US). Our shop owner started selling Pierce Lock and Chrystmela with the inventor Eri Kikunaga in Japan in 2008 and we had vest selling record in Rakuten Ichiba in 2011 and 2014 for Jewellery category. Please also note that we have special promotion for oversea shipping if you select small package postal service. It takes 1 to 2 weeks to reach US but it works. If you need expedite service for oversea service you can choose EMS and it will be reaching you within 1 week for US (cost around 10USD). We can also deliver the item any country in the world.
Please feel free to contact us for further question.