Unique Box weave chain necklace in durable stainless steel is handmade by artisan. Handcrafted metal Jewelry has Style appeal from casual business to heavy metal show! As it's named, this chain forms a perfect box with 4 sides. It is woven by continually folding the added rings back on to themselves. Creating a very rhythmic design. The mathematics involving the exact ring size to form a perfect box weave are very precise. A huge favorite! 9.25 mm wide.