This is a 24″ x 1-3/8″ Solid Polyurethane tire with white cords in light grey or black color. Its fits 24″ (540mm) rims. It is light gray with a street tread C-63. This flat-free, latex-free tire rides like a pneumatic tire but will never go flat. These tires are made with a SOFT Polyurethane Material to simulate an air ride. It wears longer (2/3x) than most pneumatic tires. Your rim MUST HAVE an AIR valve hole or this urethane tire will NOT FIT. Please check your and see if it has a hole for the air valve stem prior to ordering. Price is for a pair of tires (2).NOTE: Urethane tires are not able to be put on to a rim by hand. To put the tire onto a rim, you will need a tire (M040E) tool found HERE in our Ebay store. Another option would be to take the tires and rims to a local bike shop to put them on for you.California Proposition 65 Warning⚠ WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov