The product is a set of two Lyndex-Nikken collets with sizes of 7/16" and 7/8 R8. These high-quality collets are designed for workholding and toolholding in CNC, metalworking, and manufacturing industries. With the reputable Lyndex-Nikken brand, these collets provide precise and reliable clamping for workpieces in various applications. Ideal for professionals looking for durable and efficient workholding solutions.