There exists no other company that has the knowledge and experience accrued over 100 years of manufacturing ball chains except Samwon Petra. Experience the highest quality of metal ball chains which is the result of the combination of technologies from the United States, Japan, and South Korea. Besides chains, we also manufacture chain related accessory attachments and we are able to provide immediate delivery due to our manufacturing capacity and ready inventory. Our manufacturing department is located in Incheon, Korea.