The SunRace MX3 10 Speed 11-42 Teeth cassette is designed for Shimano compatible mountain bikes. Made of steel, this black cassette weighs 401g and includes 10 speeds with a range of 11-42 teeth. It is a high-quality part suitable for those looking for durability and performance on their cycling adventures. The SunRace brand is known for producing reliable cycling components, making this cassette a great choice for mountain biking enthusiasts.