The KUKKO Quality Tools 71-L-F bearing installation tool set is made of steel and includes a lightweight rubber mallet. This set is designed for easy and precise installation of bearings, ensuring a secure fit without damaging components. The durable steel construction provides longevity, while the rubber mallet minimizes impact damage during use. Ideal for automotive and mechanical applications, this tool set is essential for professionals and DIY enthusiasts alike. With its ergonomic design and comprehensive kit contents, it simplifies the bearing installation process.