Magnetic stir bar retrievers are coated with PTFE, which is chemically inert. Offers corrosion resistance and is compatible with most chemicals and solvents, resistant to acids, alkalis, water, and various organic solvents. Ideal for chemistry and biology research, laboratory use, home brewing for yeast starters, or preparing tinctures and salves. Effectively helps retrieve stir bars from the bottom of containers. Widely used in scientific research and experiments. Looking for a reliable magnetic stir bar retriever? This durable and practical tool is designed to meet laboratory needs. Color: White Material: PTFE Package Contents: 1 x Magnetic retriever Note: The package includes only the items listed above. Other products are not included. Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.