In the game for 40 years, Mr. & Mrs. Zhou are a duo that can fix just about any button or zipper you need fixing, right on the spot here in their cozy shop on Jiangsu Lu. Although their store is only around 8sqm, they stock about 1,000 kinds of buttons in just about every color and shape imaginable, including some rare original buttons from locally popular 80s and 90s clothes. For zippers, they've got a wide ranges of sizes and colors, and we've had great luck bringing busted old backpacks and jackets in here for a full refresh. Prices are extremely affordable: you're looking at 15-30rmb for most jobs. Also, they're extremely friendly and easy to work with. If you wanted to go wild, you could replace all the buttons on a button-down shirt with something more fabulous. They could help with that. Please note that they don't do any kind of tailoring, alteration, hemming, etc. They only work with buttons and zippers and close relatives of those items. Highly recommended.