3M is a multinational corporation that is known for producing a wide range of products for various industries. One popular product line that 3M offers is heat shrink tubing. 3M heat shrink tubing is made from high-quality materials such as polyolefin and PVC, and is designed to insulate and protect wire and cable connections. It is available in a range of sizes and styles to meet the needs of different applications, and is known for its durability and reliability. 3M's heat shrink tubing is widely used in industries such as automotive, aerospace, and telecommunications.