Slime 30012 Smart Wheel Barrow Tube, 4.80/4.00-8"

Slime Smart Tubes come preinstalled with Slime Tube Sealant to instantly and repeatedly seal tread-area punctures. Installs like a regular tube and works for up to two years. Fits: 4.8/4.0-8. Don't waste time repairing a flat tire. Slime self-healing Smart Tubes are pre-filled with Slime to prevent flats for up to two years. As the Slime treated tire rotates, centrifugal force pushes the sealant to the tread area creating a layer of protection, repairing punctures as they occur or treating existing punctures.

Self-sealing tube that prevent flat tires Pre-filled with Slime tire sealant, sealing punctures up to 1/8 inch Installs like a regular tube Works continuously for two years Fibro-Seal technology seeks out and instantly seals tread-area punctures