Product: High-quality Fat Bike Inner Tube. Size: 20" x 4.0" (Compatible with most fat tire e-bikes and bicycles). Brand/Type: Black Cat Tire. Condition: Brand new. Material: Durable rubber, designed for heavy-duty use. Package Includes: 1x Inner Tube (as shown in the images). Key Features: Perfect replacement for your fat bike or e-bike. Reliable performance and puncture-resistant design. Easy to install.
