Check the listing for details. 12Pcs Silicone Bed Mounts Leveling Column Silicone Buffer 16mm Blue. Condition: New. Listed at 21.48 USD. What is this?Silicone leveling column is mainly used for 3D printer as a stable hot bed tool to reduce vibration during operationWhat will I get?In size of: 16mm/0.63-inch outer dia, 16mm/0.63-inch height, 8mm/0.32-inch inner dia, 4mm/0.16-inch hole dia;Color: Blue;Material: Silicone;In the package of: 12pcs x Silicone Buffer.Is there any advantages of the product?Soft silicone material; Small size and lightweight; Good heat resistance and durability; Easy installation and simple operationHow to use it?Steps of installation: 1. Prepare bed cable cage with appropriate size; 2. Remove the leveling spring replacement part to be replaced; 3. InstallationWhat should I notice?Please pay attention to selecting 3D printer silicone bed mount with appropriate size, especially the height of the silicone leveling column.