Specifications: This inner tube is made of isobutylene isoprene rubber, better than natural rubber in air tightness, elastic damping and aging resistance. This inner tube is excellent replacement for Razor Crazy Cart, E100, E175, E200, andamp; ePunk scooters, eSpark andamp; Launch scooters, and for PowerRider 360 caster wheel ride-on. The 200mm x 50mm(8andquot;x2andquot;) size is very common on many of popular electric recreational scootersand 39; brands, like for BladeZ, for IZIP, for Razor, for eZip. Item Name: Inner Tube Material: Isobutylene Isoprene Rubber Type: Inflatable Valve: Angled Valve Stem Size: 200mm x 50mm/8andquot; x 2andquot; (Approx.) Compatible Models for Reference: For Razor Electric Scooter E100(Front), E125(Front), E150(Front/Rear), E175, E200(Front/Rear), E200S(Front/Rear) For Razor ePunk, Dune Buggy, Crazy Cart, PowerRider 360, Crazy Cart XL, eSpark, Launch For ActiveCare Medical Catalina, Intrepid, Intrepid P22, Medalist, Medalist P22, Renegade, Renegade P24, Spitfire 1310, Spitfire 1410, Wildcat For Tuffcare Challenger 1000 Pediatric, 200 Pediatric, 1450, 1500, 1700, 2000, 2040 Recliner, 2500, Extra Wide, 2540 Extra Wide Recliner, BP 5000, BX 6000, PP 5500, PX 6500 For Bladez (B x Mobile) Sport (DKS200), Travel Mate (DKS280) For Bladez eLite 300S, Ion 150, XTR Lite 250 For Coolpeds S3 For Dynacraft SU E-Scooter For eWheels EW-01 Speedy For eZip E-150, EZ2 Nano and So On Notes: Due to the light and screen setting difference, the itemand 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Inner Tube