400 x 8 - 4 ply tyre, a popular tyre used on many makes of small domestic trailers.
400 x 8 - 6 ply tyre, a popular tyre used on many domestic trailers, carries more load than the 4 ply.
16.5 x 6.5 x 8 4 ply tyre, a small tyre used mainly on trailer tents and special applications.
16.5 x 6.5 x 8 6 ply tyre, a small tyre used mainly on trailer tents and special applications.
Inner tube to suit all 400 x 8 tyres.
Inner tube suits 500 x 10, 520 x 10, 145 x 10 tyres.