[ KIT] Comes complete with a straw, lens cloth, screwdriver and plastic case for easy storage and transportation of the refractometer. [WIDE RANGE] With a test range of 0-80%, this refractometer is suitable for various sugary drinks and foods, providing accurate readings every time. [ MATERIALS] Constructed of plastic and aluminum, ensuring long-lasting performance and reliability in measuring sugar content. [] The included cover plate protects the prism during use, improving the stability and accuracy of each measurement made. [CONVENIENT USE] Easy-to-follow instructions make using this Brix Meter Refractometer a breeze for beginners and experts alike.