Compatibility: This group of blade knives is compatible with Vorwerk Thermomix TM31, the replacement knives have four sharp blades, which can perfectly fit the original mixer. Quality Material: Knife set for Vorwerk Thermomix TM31 is made of high quality stainless steel, which is smooth and can resist wear, not easy to rust, can be washed with water, so this TM31 accessory can be used for a long time. Easy to Replace: Replacing the knife group for Vorwerk Thermomix TM31 can be done by yourself, but the blade is made of stainless steel, be careful not to scratch your hands when replacing. Practical Design: The 4 blades of the replacement knife group component for Vorwerk Thermomix TM31 work together to achieve even and perfect cutting and mixing and achieve the same effect as the new original machine, useful for chopping, shred any type of food. Feature: - Made of quality stainless steel, smooth and wear resistant, not easy to rust. -Can be washed with water, high reuse rate. Parameters: Compatibility: Vorwerk Thermomix TM31 Material: stainless steel. Blades: 4 stainless steel blades.