Description The Zefal Z Box is your tool holding water-bottle lookalike. Fitting into a standard bidon cage this old classic is the way to carry spares & sneaky snacks. Available in both a Large & Medium size, the Large has multiple compartments. Zefal Z Box Features & Specs Waterproof Fits in any standard bidon cage / water bottle cage Available in Medium & Large sizes Medium = 80g, 170mm H, 0.6L capacity Large = 130g, 250mm H, 0.8L capacity Large size Z Box breaks down into 3 compartments for better organization Made from polypropylene Also works as a water bottle in a pinch!