Keep your city, commute, or E-Bike rolling smoothly with Joe's No-Flats Inner Tube Sealant. This yellow fiber gel sealant is designed specifically for tubes, containing micro-fibers to prevent punctures up to 3mm in the tread. With unmatched longevity lasting up to 3 years in the tube, this non-toxic sealant is easy to install and fits all valve types. Simply add fresh sealant every 12 months for effective puncture resistance. In the event of a puncture, remember to spin the wheel to disperse the sealant and get back on the road quickly.