The MRS-24 Magnetic retrieval system is the ideal tool to effortlessly fish wires through walls. The 10 ft. long Ball chain can navigate through the wall with ease. The eyelet on the ball chain connects to most wires and the 3/4 in. Stop ring prevents it from falling into the wall. The 24 in. flexible magnetic retriever has high strength neodymium magnets and can be bent into any shape to retrieve the ball chain. The expandable retriever hook can extend up to 18 in. to grab the ball chain with ease. This kit includes: 24 in. Flexible magnetic retriever, 10 ft. Ball chain with 3/4 in. stop ring, MRS-RH20 expandable retriever hook, and storage pouch. Material: Metal.