Polished stainless steel. Chain Grabber slips between the links of an anchor chian and provides an excellent bridle for anchoring in heavy conditions. Two shackle holes provide attachment for bridle lines which are then made off to port and starboard deck cleats. Fits all types of chains in the following sizes: 5/16", 3/8", 7/16" and 1/2". Extremely heavy duty. (Requires two shackles that are not included - Recommend D shackles 7/16" stainless steel.)