Features: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information; 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed. 3.This hydrometer lets you easily calculate percentages, the gradient ribbon helps you know when fermentation is done, and the font is very easy to read. 4.Create the perfect brew to make premium beer, wine at home with this durable all-glass brewing hydrometer, the perfect tool for testing when a sample liquid has finished the fermentation process. 5.Specific Gravity (0.99 - 1.16), Potential (0%-20%), Brix/Balling (0-35). Specifications: Material: Glass & Plastic & Metal Color: Transparent & Silver & White Size: Hydrometer: 265mm/10.43inch (Length) Test Jar: 297mm/11.69inch (Height) Brush: 240mm/9.45inch (Length) Weight: 136g Package include: 1 x Hydrometer 1 x Test Jar 1 x Brush