Features 1、CHEMICAL RESISTANCE: Magnetic stir bar retriever is made of polytetrafluoroethylene PTFE material and can be used with erosive chemicals, very reliable 2、NON ADHESION: PTFE magnetic stir bar retriever has the smallest surface tension among solid substances and does not adhere to any substance 3、LOW TEMPERATURE RESISTANCE: This stir bar retriever has good mechanical toughness and can maintain a 5% usage rate even when the temperature drops to ‑196 ℃ 4、STURDY AND PRACTICAL: Sealed with excellent magnets and coated with PTFE, stir bar retriever help you easily recover mixing rods in your container and is easy to use 5、WIDE APPLICATION: Magnetic stir bar retriever is suitable for scientific research of mixed liquids or solutions, industry, agriculture, health and pharmaceuticals Specification Item Type: Magnetic Stir Bar Retriever Material: Plastic and iron Use: Suitable for scientific research, industry, agriculture, health, and pharmaceuticals involving mixing liquids or solutions Package List 1 x Magnetic Stir Bar Retriever