Features: new and high quality The sealing rings of the mixer blade is made of food grade silicone material, which can be used for a long time. It is safe and secure to use, don't worry about poisonous and harmful. This blender accessory spare parts are perfect fit for Thermomix TM5 TM6 blending machines. Prevent your blender blade from unnecessary wear. Blender blade sealing rings set has good sealing and reusability. Good performances, can be used repeatedly, affordable and practical. Small and portable, it is more convenient to install without tools. No additional tools or technical support are required for replacement installations. Blender blade protective rings is a kitchen accessory, a good helper for cooking, very suitable for cooking lovers. Real kitchen goodies. Specifications: Material:Silicone Cololr:Green/Gray Size:Approx.4.2cm/1.65inch Package Includes: 5Pcs Sealing Rings note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.