7pc PTFE Stir Bars Set - Straight (15,20,25,35,50 mm), Cross (38 mm), Retriever (250 mm)

Product features NdFeB magnet core provides strong magnetic force, while PTFE coating provides resistance to most chemicals and non-stick surface, which make it perfect for many applications in industry, scientific research, or your home lab; 5 straight stir bars with pivot (length x diameter: 15x6,20x7,25x8,35x9 and 50x10 mm) for low friction stirring of different volumes; One cross-shaped stir bars (length x Height: 38 x 13 mm) for stable and high efficiency stirring; One stir bar retriever (length x diameter: 250 x 9 mm) for easy removal of stir bar from solutions, works well for beakers up to 4L; Color: White; Max working temperature range: -196℃ to 250℃.