GLOMAXLY 24 Pcs 4 Inches Borosilicate Glass Tubes 12mm OD 2mm Wall Thickness Borosilicate Transparent Shatter-Resistant High Heat Resistance for Blowing, Lab, DIY Laboratory Craft Projects

["Value Pack:Package contains 24 pieces of 4 inches long clear glass tubes meeting your long-term use, replacement and bulk project needs,avoiding the hassle of frequent reorders.","Safe and Durable: Our glass tubes feature fire-polished ends for safe and easy handling. Each glass tubing diameter is 12mm and thickness is 2mm, ensuring durability","Premium Material: Premium Borosilicate Glass Construction; Thick, sturdy and shatter-resistant, designed to avoid breakage during lab operations, crafting and frequent handling, solving the common problem of fragile ordinary glass tubes.","Crystal-Clear Clarity: borosilicate glass test tubes See Everything With exceptional transparency, glass tubes for glass blowing offer unobstructed visibility for precise observation during experiments or liquid transfers. glass tubing for blowing Perfect for lab work, scientific research, or teaching.","Perfect for Every Use: With its 4-inch height, 12mm OD and 2mm wall thickness,test tubes glass has a wide range of uses, Suitable for glass blowing, laboratory testing, sample transfer, educational demonstrations and DIY craft projects, fitting both professionals and hobbyists."]