YOU ARE BUYING TWO SCHWALBE NUMBER 19 SCHRADER TUBES TO SUIT VARIOUS SIZES OF TYRES. PAIR OF INNER TUBES FOR 650B/27.5 700c 28" and 29ER RANGE OF MTB BIKES. SCHRADER VALVE (CAR TYPE). 28 x1.5, 28 x 1.75, 28 x 1.9, 28 x 2.00 28 x 2.125, 28 x 2.25, 28 x 2.3.
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