From the product description, check product page for current description, price and availability:

• All-In-One; Our hydrometer test kit comes with everything you need to ensure your measurements of Specific Gravity, Brix and ABV are accurate and easy to read; Whether it’s great tasting beer, wine, mead or cider that you’re after, we’ve got you covered.
• What’s included; Precision triple scale hydrometer with protective case, break-proof transparent plastic 250ml cylinder, gentle cleaning brush, microfibre cleaning cloth, easy to understand instruction manual and a complimentary carrying bag to keep everything in one place.
• Easy as pie: Whether you’re a first-timer or a seasoned pro, our clear instructions will guide you through the safe and simple process. We use industry standard scales which read specific gravity from 0.990-1.160, potential alcohol by volume from 0-20% and brix (sugar content) from 0-35.
• Makes a Great Gift; Treat yourself or help out a fellow homebrew enthusiast. Nothing says you care more than ensuring your friends and family are set up with complete and accurate brewing supplies. They will be sure to share the delicious final product.