I have created a 50cm ball chain necklace to match the college pendant tops I sell. This is a current, new item. The exact material is unknown, but the color is brass/copper. I was looking for something that would match antique/vintage parts. The ball width is about 2mm. The color of the connecting parts and the chain are slightly different. Basically, I sell these in 50cm lengths. If you would like a slightly longer length, I can make it for an additional 100 yen per 10cm added. Please be sure to inquire before purchasing. I will offer it at half price to those who purchase it together with the pendant tops I sell. The last photo is an image. There are no parts to connect the chain and the pendant top. If there are no particular problems with the product, you can purchase it immediately without asking questions. It is a first-come, first-served bidding system. I do not generally negotiate prices. I will decide when to lower the price. Please follow the Mercari rules and conduct transactions with common sense. Please also see my profile. ★ Please bid only if you can start the transaction within 24 hours of the winning bid and make the payment within the deadline. ★ For items with shipping included, I use the lowest-cost shipping method to save on expenses. Some items are packaged with recycled materials. If you have requests for anonymous shipping, expedited shipping, or specific dates/times, please be sure to consult with me before bidding. The price may increase depending on the content. ★ I am an amateur, so there may be some oversights, such as the loss or damage of small parts. Please understand that there may be some margin of error in the measurements. ★ Please note that the color and texture may differ slightly from the images depending on the shooting conditions. Search terms (borrowing these words): Medal, college ring, university, necklace, top, company emblem, pins, 40s badge, vintage clothing, vintage, charm, 50s antique, commemorative, pendant head, medal, brooch, accessories, jewelry, vintage clothing for women, vintage clothing for men, parts, school, school, charm, 50s antique, commemorative item, jewelry, accessories