Features: 1Good Performance: Blender blade sealing rings set has good sealing and reusability. Good performance, can be used repeatedly, affordable and practical. 2Easy to Use: Small and portable, it is more convenient to install without tools. No additional tools or technical support are required for replacement installations. 3High Quality Material: 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. 4Applicable Models: This blender accessory spare parts are perfect fit for Vorwerk Thermomix TM21 TM31 blending machines. Prevent your blender blade from unnecessary wear. 5Cooking Accessory: Blender blade protective rings is a kitchen accessory, a good helper for cooking, very suitable for cooking lovers. Real kitchen goodies.Item Type: Blender Silicone GasketMaterial: SiliconeWeight: Approx. 12g / 0.4ozApplicable: for Vorwerk Thermomix TM21 TM31Package Included:5 x Blender&nbspBlade&nbspSealing&nbspRings