2x bicycle inner tubes with 2 tire spoons interchangeable inner tubes 1.75/2.125 Description: [Product specifications]: 1.75/1.95/2.10/2.125 inch inner tubes are the widest size range on the market, butyl rubber inner tubes fit most road and mountain bikes, they are great replacements for cracked inner tubes. [High Quality]: Mountain bike inner tubes are made of high quality rubber, which has good sealing properties and stable tire pressure, and has aging and cushioning properties. [Durable and comfortable]: road bike inner tubes are more durable, have good strength, withstand the toughest terrain and are puncture and tear resistant. [Easy to install]: inner tube with 2 tire spoons, installation operation is very simple and fast, saves time and effort, you can replace old inner tubes in minutes, tire spoons can help install bicycle inner tube tire without scratches or rim and tube. [Important Tips]: Please inflate a small amount of air before you are ready to install until the inner tube is round, by the way, check if there is no air leakage You can shape it so that it does not twist into a ball and make it flat. Finally, check that the inner side of the tire is flat. Specification: Material: rubber Size: 26 x 1,75/2,125 inches 24 x 1,75/2,125 inches 22 x 1,75/2,125 inches 20 x 1,75/2,125 inches 18 x 1,75/2,125 inches 16 x 1,75/2,125 inches 14 x 1,75/2,125 inches 12 x 1,75/2,125 inches The package includes: 2 bicycle inner tubes 2 tablespoons for tires