Features: Compatibility: Silicone sock fit for E3D V6 PT100 hot end heater block. Made of heat-resistant, non-stick silicone material, high-temperature resistance: 250. The extruder case fit for all E3D V6 MK8 hotend ,good thermal stability, high temperature and low temperature resistance Help to heat the hotend to a desired temperature as the structure of the silicone inside the sock prevents heat from escaping quickly. The 3D printer accessories here use high quality raw materials and fine workmanship, If you have any question for our product, please feel free to contact us, we will do our best for you. Package Includes: 10X Silicone Covers for Heater Block Specifications: Type:Silicone Cover for Heater Block Material:High-temperature Silicone Color: White/Green/Pink/Yellow (optional) Apply:For E3D V6 Aluminum Block Item Size: Approx 2X1.6cm/0.79X0.63in note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.