Solid Silicone Hot Bed Levelling Spacers for 3D printer Excellent upgrade for your 3D printer replacing the weaker stock bed springs. These high temperature silicone spacers greatly increase the stability and reliability of the bed levelling.  Once levelled the bed should remain level for a lot longer due to the stiffness of the silicone spacers. It will works with nearly all Creality 3D printers including the CR-10, CR-10S, Ender 3, Ender 3-Pro, Ender 3 V2 among many others. Item Specifics: Outside diameter: 16mm Inside diameter: 4mm Length: 18mm QTY: 4 pack Items are in brand new condition. Will be posted within 1 working day and via Royal Mail 1st Class postage. 30 day return policy for damaged or faulty items.  Refunds not accepted for damage due to misuse.