DescriptionAre you looking for professional quality products with reasonable prices? Are you looking for a sturdy, durable and reliable sublimation tube that can complete multiple tasks? If so, our products will be your best choice! Our professional glass sealed iodine hammer will meet your needs.Features- Color: Transparent. - Material: Glass. - Size: 11.00X6.50X2.50cm/4.32X2.55X0.98 inch. - Select safe and premium glass material, no side leakage, having long service life. - It is used to demonstrate that the solid substance (iodine) directly turns into a gas without passing through the liquid phase is called sublimation. - Transparent tube design is easy to observe the sublimation phenomenon. - Stimulate students' interest, improve analysis and observation skills. - Widely used for education, physical experiment, research, or chemistry application