Select the right size for your charger holder: The Mac charger cord winder comes in four different sizes to fit various MagSafe, Macbook, Macbook Pro, and Macbook air chargers. Small (S) fits 29W, 30W USB-C. Medium (M) fits 45W MagSafe. Large (L) fits 60W, 61W MagSafe and USB-C. Extra large (XL) fits 85W, 87W, 96W MagSafe and USB-C. Cable management for Mac that works: Declutter your cords for faster set up on the move with the HumanCentric Macbook charger organizer. Eliminate tangled power cords and laptop accessories clutter on your desk and in your computer bag or briefcase storage. Quickly unwind to get to work or wind up to go. Portable charger protector: Easily reel your Macbook charger in seconds into a compact case that fits neatly in bags and backpacks. Ideal for organizing Macbook Pro and Macbook Air cords for travel, school, and business. Extend your Mac charging cord to only the length needed for the job. Compatible with original Apple USB-C and MagSafe cables