The Fit On 20 x 4 E-BIKE fat tire is a high-quality tire made of durable rubber in a sleek black colour. This semi-slick tire with puncture-resistant features is designed for universal, electric, and fat bikes, offering a sturdy and reliable option for cyclists looking for a thick tire with a 25-35 PSI rating. With a width of 4 inches and a weight of 4 pounds, this set includes two tires, perfect for enhancing the performance and safety of your bike. collection possibly from E14 3BY