Check the listing for details. Silicone Sock Heater Block Silicone Cover High-temperature. Condition: New, Made in China. Listed at 8.17 USD. Features: Brand new and high quality The removable nozzle silicone sleeve can be replaced easily, save-time Made of high-quality materials, exquisite workmanship, very good quality and long service life. The appearance of this product is very matching, and there will be no sense of violation after installation. Small in size and light in weight, which is very convenient to carry around. Suitable for Red Lizard K1 Hotend. Specifications: Material:Silicone Color:Black Package Includes: 1x Silicone Sleeve 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.