Feature: 1. [3 Layers Dual Density] The insulation cotton using high quality 3 layers ans dual density lightweight foam laminate, high noise reduction. 2. [High Temperature Resistance] High thermal insulation performance,high thermal and acoustic properties, non combustible and flame retardant. 3. [Easily Cutting] Easy to cut and fit, with high adhesive strength, the hot bed heat insulation cotton can be cut into any shape you need. 4. [Durable Usage] Using durable and high quality shell material, the 3D printer hot bed insulation cotton has a long service life. 5. [Application] This heat insulation cotton can be used for 3D printer like for Ender 3 Pro and for Ender 5, a great accessories for 3D printer. Specification: Item Type: Heat Insulation Cotton Material: Aluminum Foil, Cotton . Package List: 1 x Heat Insulation Cotton Note: Installation Precautions:1. Use scissors, a knife or a mold to cut the mat into the required size and shape, and then remove the release paper.2. Please clean the side you want to paste.3. Make the insulation material and the sheet metal fit firmly, and exert the best bonding and damping performance4. Do not cover the wiring or holes of the chassis during installation5. Appropriate use of tape will enhance the connection effect6. Paste the aluminum sound insulation/damping board, which can be heated with a hair dryer to make it soft, and then compact by hand. If the room temperature is lower than 5 degrees Celsius, first heat it with a sun lamp until it becomes soft. Then remove the wax paper and paste7. A successful installation process is best not to repeat the tearing and pasting, the pasting effect will not be damaged8. Extra insulating materials can be pasted in some unseen placesSpecial attention: the heating temperature of high temperature resistant cotton cannot exceed 100 degrees.