8pcs Graduated Glass Test Tube with Screw Caps, 30ml Heat Resistant Lab Sample Storage Tube

8pcs Graduated Glass Test Tube with Screw Caps, 30ml Heat Resistant Lab Sample Storage Tube Q:What capacity sizes are included? A:The set includes 10ml, 15ml, 20ml, and 30ml tubes, with 2 tubes of each size. Q:What material are these test tubes made from? A:They are made from heat-resistant borosilicate glass for durability and reliability. Q:Are the screw caps airtight for storage? A:Yes, the caps provide a tight seal, making them great for storing liquids, samples, or small items. Q:Can these tubes be used for measuring liquids? A:Absolutely, they feature clear graduation marks for accurate liquid measurement. Q:Are they suitable for storing candy or food items? A:Yes, they are versatile and can be used for candy, samples, and various storage needs. Features:1. Set includes 10ml, 15ml, 20ml, and 30ml capacities. 2. Made from heat-resistant borosilicate glass. 3. Secure screw caps provide leak-proof sealing. 4. Clear graduations for accurate measurement. 5. Suitable for laboratory, storage, and craft uses. Specifications:Product Name: Glass Test Tube with Screw Caps Material: Glass Size: 15.5 x 1.5 cm Color: Transparent Package Includes:2 Pieces 10ml Test Tubes 2 Pieces 15ml Test Tubes 2 Pieces 20ml Test Tubes 2 Pieces 30ml Test Tubes 【4 Capacity Options】Includes 10ml, 15ml, 20ml, and 30ml sizes, with 2 tubes per capacity for versatile storage and measuring needs 【Heat Resistant Glass】Crafted from durable borosilicate glass that withstands high temperatures, ensuring a longer service life than standard plastic tubes 【Secure Screw Caps】Features tight-sealing screw caps that make these tubes ideal for storing samples, liquids, and small items safely 【Multi-Purpose Use】Perfect for lab experiments, candy storage, liquid measuring, and various home or craft applications 【Clear Graduations】Each tube has easy-to-read measurement marks, allowing for precise liquid dispensing and sample organization