2 13X15,DBL ENDED RING SPANNER OFFSET
2 13X17,DBL ENDED RING SPANNER OFFSET
2 14X15,DBL ENDED RING SPANNER OFFSET
2 14X17,DBL ENDED RING SPANNER OFFSET
2 16X17,DBL ENDED RING SPANNER OFFSET
2 16X18,DBL ENDED RING SPANNER OFFSET
2 17X19,DBL ENDED RING SPANNER OFFSET
2 18X19,DBL ENDED RING SPANNER OFFSET