1. The 1x1 meter PTFE tube with the lowest friction in the market. Less friction means higher responsiveness, less retraction, more accurate printing, less extruder slippage, wear and tear, and when printing thick filaments (such as some wood filler or iron Filling) less clogging.2. 1* PTFE cutter and a particularly sharp razor included to ensure that the PTFE is cut flat on both sides to prevent any malfunction or thermal creep during feeding and retraction.3, 2 * PC4-M10 and KJH04-M6 pneumatic connectors are used to fix PTFE in the extruder and hot end.4. A 4 * MK8 silicone sleeve is also provided to help keep the temperature on the hotend more stable, which will result in higher print quality and more consistency.5. 2*0.4mm brass nozzle + 2*0.4mm stainless steel nozzle helps to keep the hot end temperature extremely stable.Product name: 3D printer accessories PTFE kitheat resistance, up to 340COuter diameter: 4mm, inner diameter: 2mmCleaning needle: 70mmNozzle: 13x7mmSilicone cover: 23.3x23.3x13.1mmPipe cutter: 78x26x26mmApplicable models: suitable compatible with Ender 3/3 Pro/5 CR-10 series/10S/20/20 ProMaterial:ABS+metalcolour:Photo ColorPackage Contents:1 * pipe cutter2 * Pneumatic connector KJH04-M62 * Pneumatic connector PC4-M102 * 1.75mm brass MK8 nozzle 0.4mm2 * 1.75mm hardened steel MK8 nozzle 0.4mm4 * MK8 Silicone Case1 * PTFE tube4 * silver cleaning needle 0.35mm1 * Clean the needle tubeOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.