Rinercber 6 Pcs colored Borosilicate Blowing Tubes, 4.3 Inch Length, 2mm Wall Thickness - High Temp Resistant for Industrial, Laboratory, and Craft Projects, glass straw, With 2 Cleaning Brush

["1. Premium Borosilicate Glass Construction Crafted from laboratory-grade borosilicate glass, offering exceptional thermal shock resistance and high temperature tolerance. Engineered for superior durability compared to standard glass","2. Robust & Durable Design Features a substantial 2mm wall thickness and sturdy construction for enhanced strength and resistance to chipping during handling and use. Built for reliability in demanding applications","3. Precision Dimensions for Versatile Applications Each tube measures 4.3 inches (108mm) in length with a 7mm internal diameter and 12mm outer diameter. The consistent dimensions and smooth bore ensure predictable performance for industrial processes, laboratory setups, and specialized craft projects.","4. Straightforward Maintenance The straight tube design and open ends facilitate easy cleaning using appropriate tools (such as pipe cleaners) and solvents like isopropyl alcohol for laboratory or industrial maintenance. The borosilicate glass surface helps minimize adherence"]