COMPATIBILE WITH JETSON BOLT UP & BOLT PRO: Replacement tire and tube set for the Jetson Bolt Up 14” Electric Ride-On (Model SKU: JBLTUP-BLK) and Jetson Bolt Pro Electric Bike (Model SKUs: JBLTP-SBL, JBLTP-FGR, JBLTP-CA-BKL, JBLTP-BLK, JBLTP-BLK-OB, JBLTP-BLK-RA, JBLTP-BLK-RB, and JBLTP-MX-BLK). Note that Jetson tire and tube sets are specific to certain models and not compatible with all Jetson electric bikes and ride-ons. AUTHORIZED JETSON SPARE PART: Sold and warranted by Jetson. 1 FULL SET: Includes 1 black tire and 1 black inner tire tube. SIZE: For tires measuring 14” (diameter) by 2.125” (width). MATERIAL: Tire and tube are made of durable rubber.