100% Brand New, Never MountedHigh class quality and very durableProfessional Installation RecommendedIntake Side inner Diameter :18mmIntake Side Outer Diameter :28mmAir Filter Mount inner Diameter :35mmAir Filter Mount Outer Diameter :38mmPart Number:GY016002-3Fitment:Fit compatible withGY6 50CC 139QMB 139QMAcompatible with US: Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Tomos Nitro, Vento, VIPcompatible with Poland: Banzer, Barton, Zipp, Romet, Kingway, Zumico, Motorbikecompatible with Russian: ABM, RACER, VENTA, STELS, IRBIS, OMAKS, NEXUS,PATRON,SAGITTAcompatible with other brands: BAOTIAN, JONWAY, QINGQI, SHENKE, ZNEN, LEIKE, WANGYE, LONGJIA, YIBEN, HUATIANMaterial:aluminumcolour:SilverPackage Contents:1 * 50CC Carburetor1 * Intake Manifold PipeOnly 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.