Inner Diameter: 190 mm / 7.48 inches Outer Diameter: 328 mm / 12.91 inches Valve Type: Schradar (Car Type) Inner Tube Size: 3.00 - 8 Valve Angle Type: Bent Wheel Rim Size: 8 Inch Manufacturer/Brand: Petrolscooter Pack Quantity: 3 - PLEASE NOTE This innertube fits a number of different size tyres. Not all of the sizes this innertube fits will be printed on the innertube itself, as the space is limited. If the size you purchased is not written on the innertube or is written differently dont be alarmed, it will fit your tyre if your size is listed within the range of fitment sizes on the product listing. We market different innertube sizes to different product markets, the size is superimposed on the product images so buyers know it will fit their size tyre.