Description: For Honda CBR400 NC23 1987-1989 For Honda CBR400 NC29 1990-1994 For Honda CB-1 (CB400F) 1989-1991 100% Brand new, easy to install Use of high quality rubber material to ensure its durability, good working condition Specification: Material: Rubber Color: Black Height: 30mm / 1.18 inch Diameter: 45mm / 1.77 inch Package Includes: 4 Pieces Carburetor Interface Adapters Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size and picture of this product, ensure this part fit for your motorcycle before purchase. Thank you