Feature:1. Aluminum Material: Made of high quality aluminum alloy material with high strength and wear resistance, having good performance for long service life.2. Weight Reduction Design: Hollow out design is adopted for weight reduction function, reducing dead weight, make driving more smooth and easier, providing a satisfying using experience.3. Suitable Model: Ideal replacement for the original old or damaged part, suitable for Brompton 3sixty folding bike variable speed rear derailleur (single speed, inside 3 speed and outside 2 speed, inside 5 speed and inside 8 speed).4. Fine Workmanship: Manufactured with accurate shape and size, able to provide a close fitting, simple for installation and removal, will not take much effort or time.5. Well Made: Exquisite workmanship and good technology, to ensure the quality of products, making the bike chain refit tower wheel durable and practical.Specification:Item Type: Bike Chain Guide Tower WheelMaterial: Aluminum Alloy + POMColor: As Picture ShownApplication: for Brompton 3sixty and Other Internal Variable Speed Folding Car (Single speed, inside 3 speed and outside 2 speed, inside 5 speed and outside 8 speed)Gross Weight: Approx.22g/0.8oz.Package List:1 xBike Chain Guide Tower Wheel