COMBO PACK: Offer includes TWO (2) inner tubes that fit sizes 18x8.50-8 18x9.50-8 18x850-8 18x950-8 18-8.50-8 18-9.50-8

PREMIUM TRUSTED BRAND: Made with premium-quality, heavy-duty rubber, these inner tubes are highly durable and ideal for home, professional and commercial / industrial use with many lawn and garden applications

STEM TYPE: TR13 valve stem - straight valve stem. Valve is straight, rubber covered, 1.38'' long with maximum inflation of 60 psi. Rim hole 0.453; B6 bushing required for use in a 0.625 inch rim hole. B6 bushing NOT INCLUDED

LENGTHEN TIRE LIFE: Utilizing a Firestone Inner Tube allows you to fixing flats without replacing the tire. Inspect the inside of the tire carefully to ensure it is free of dirt, foreign objects or punctures prior to installation.

LAWN MOWER FITMENT: Fits 8 inch rim size - great replacement for rear lawn mower tires