10 INCH SIZE The size of 10 x 2.125 is perfectly compatible with the front and rear wheels of most electric scooters. But not suitable for some scooters with smaller 6.5 inch tyres. The 10 inch inner tube easily increases the maximum speed of the electric scooter. Please confirm that the product size meets your requirements before purchasing. HIGH-QUALITY RUBBER Our hoses are made of thick shock-absorbing butyl rubber. These replacement hoses are 0.5mm thicker than normal hoses and offer a higher shock absorption effect. In addition, these hoses also have chemical resistance, weather resistance, tear resistance and abrasion resistance. STABLE PERFORMANCE Improved thickened rubber tyres are super tear-resistant, scratch-resistant and durable. High quality valves are used to maintain more pressure. Pneumatic tyres should avoid puncturing sharp objects. RECOMMENDED AIR PRESSURE explosion-proof hoses recommended air pressure: PSI 36 (please note that it is best to inflate according to the recommended air pressure of the hose, do not inflate according to the pressure indicated on the tyre, otherwise it will burst easily). PACKAGE LISTING You will receive 2 thick tubes and 2 metal tyres. The economical combination of the arrangement helps you change tyres quickly.