Description Description: * brand new and high quality *Made of high quality material, durable and practical to use *FITS LOTS OF SMALL CHILDRENS BIKES. Specification: *Material: Rubber *Color: Black (As Pictures Show) *Size: 12*2.125 *Weight: About 500g Package Includes: 1 x Inner tube 1 x Tire Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Made of high quality material, durable and practical to use. Perfect functions,give you a wonderful experience. If you have any questions, please feel free to contact us, we will solve it for you. Every customer can enjoy 30 days refund or replacement for Damaged/Quality Issues. 12X2.125 Mountain Bike Bicycle Pneumatic Tire 12 inch Inner Tube Tire–Thicken.