Features: brand new and high quality It is a must upgrade parts for your Flsn Q5 Printer, or DIY your own printer. Steel spring sheet 's thickness about 0.5mm, positive and negative side can be reused. Pei with high temp adhesive to make your print easy to stick to the printing surface, flexible, removable. After printing, use steel wool pads with detergent to clean the Pei sheet, will keep the Pei like new. Pei formost filament, include Pla/ Carbon Petg Abs/ Tpu/ Wood etc. Kindly Tips: We have helped you stick Pei on the steel plate, so you no longer need to worry about the bubbles. Before using, please remove the protect film which stick on the Pei surface. High temp-resistant and high temp adhesive magnetic base, easy installation and easy to remove. You also can cut it for any size. Specifications: Material：Steel Number of Items：Round Steel Spring+Magnetic Base Set Item：Round Steel Spring for Flsn Q5 Printer Size: approx Diameter 265mm/10.4in Package Includes: 1x Round Steel Spring (Before using, please remove the protect film which stick on the Pei surface) 1x Magnetic Base note: We have helped you stick Pei on the steel plate, so you no longer need to worry about the bubbles. Before using, please remove the protect film which stick on the Pei surface. 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.