The Boots Glass Hydrometer for Wine and Beer is a handheld manual device made of clear glass, perfect for home brewing and wine making. Designed in the United Kingdom, this hydrometer comes with damaged box, ensuring ease of use for measuring the specific gravity of your beverages. With a focus on precision and accuracy, this product from Boots is essential for any home brewer or wine enthusiast looking to create high-quality alcoholic beverages. Without instruction booklet.