The product is a set of 100 M3 threaded inserts made of brass, measuring 4mm in height and 5mm in diameter. They are heat set inserts designed for 3D printing, featuring a gold exterior finish. The inserts are branded by and are ideal for fastening applications in various industrial settings. With a compact product dimension of 0.19 x 0.1 x 0.15 inches and a weight of 1.28 ounces, these threaded inserts provide a secure and durable fastening solution for different mechanical components.