Solid tire, 10x2.5 size, bihoneycomb construction, rim groove width 34mm. Advantages include puncture-proof operation and no-need-to-inflate maintenance. Honeycomb tire engineering provides the reliability of a solid tire while also contributing additional shock absorption and suspension characteristics during operation. Commonly used for kick scooters, hoverboards and E-mobility products. Inner diameter 14cm (5.5 inch), outer diameter 24cm (9.5 inch).