Direct replacement for your old or broken intake boot Repairs a common problem on the motorcycle Made of premium materials with exquisite craft for strong strength and long durability Easy to install, perfect match to the stock carburetor Fits for the GY6-250, CF250, found on Helix CN250, JMstar 250, Jonway Master 250, Lance Duke 250, NST, Roketa Bali 250, Sunl SL250-2, Tank Touring 250DE, and many others. Part number 172MM-022900 Specification: Material: Aluminum + Rubber Color: As pictures shown Diameter of Intake Hole: Approx. 27.00mm / 1.06' Distance between Mount Holes (Centre to Centre): Approx. 56.00mm / 2.2' Inner Diameter of Carby Mount Holes: Approx. 34.00mm / 1.34' Package Includes: 1 Piece Intake Boot Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.