10pcs Laboratory Test Tubes 100mm Thick Wall Glass, Reusable Transparent School. These High-quality Glass Tubes Are Designed for Various Laboratory Applications. With an Outside Diameter of 10mm, an Inside Diameter of 8mm, and a Length of 100mm, They Feature a 1mm Thick Wall for Enhanced Durability. Crafted from Transparent Glass, Each Tube Has Fire-polished Ends on Both Sides, Ensuring Smoothness and Safety During Use. The Glass Material is Specially Designed to Withstand High Temperatures, Up to Approximately 200 Degrees, Making It Ideal for Reactions at Room Temperature or when Heated. With a Low Thermal Expansion Coefficient, These Tubes Offer Exceptional Performance and Reliability. Features: - Outside Diameter: 10mm - Inside Diameter: 8mm - Length: 100mm - Wall Thickness: 1mm - Material: Transparent Glass - Fire Polished Ends: Both Sides - High Temperature Resistance: Up to 200 Degrees - Low Thermal Expansion Coefficient Package Includes: - 10 X Glass Tubes Note: Slight Color Variations Might Occur Due to Lighting and Display Differences. Measurement Error Allowance is +/- 1-3cm.. Your order tracking code will be sent on shipping and takes up to 5 days to show live information.