The Titan Universal Puncture Proof Wheel gives you the best of both worlds ? no more flat tyres, without compromising on performance! The microcellular HDPU foam outer, combines with the built-in shock absorber system, to ensure that our Titan offer the same amount of flexibility as a standard pneumatic wheel, while ensure you do not pick up a puncture when traveling across sharp ground or after heavy impact. Supplied with various axel bushing to fit 12mm, 25mm, and 32mm axel sizes, helping you bring new life to your old wheelbarrow!