International Advisory Service (IAS) has over 72 years of experience. IAS is a solid brass and zinc hardware manufacturer for the medium to high end leather and accessory market. We specialize in the custom development of brass and zinc items per our customers specs including, but not limited to: buckles, swivel snaps, closures, logo plates, studs, rivets, rings, and more. We provide a full service solution from initial item design, plastic 3D sampling, brass prototyping, production, and delivery. We have offices in Massachusetts, Hong Kong, and our factory in China.