This extension adapter is worthwhile to buy because it can protect the Type-C interface from the wear and tear, which can greatly increase of service life.Featuring 100W power output charging, 5K video and 40Gbps data speed, this adapter can provide you with nice usage experience.Made of high-quality aluminium alloy material, it is firm and durable to use.The length of this product is 2.8cm, the width is 2.25cm, and the height is 0.6cm.It is compatible with any side-mounted USB-C hub in the market, let you able to plug in the hub without removing a protective case from for MacBook Pro. This adapter is better than using extension cables which likely degrade the USB signal in result of unstable connection, and can effectively reduce and block heat from an operating USB-C hub for MacBook Pro/Air.Item Name: Type-C Extension AdapterMaterial: Aluminum AlloyFeatures: High Strength, High Speed, Interface ProtectionSize Details: 2.8cm x 2.25cm x 0.6cm/1.1" x 0.89" x 0.24" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Type-C Extension Adapter