There are 12 Strips in this Track-Bed Standard Pack. These strips are the perfect roadbed for especially tight track applications. The Strips are 3mm x 1-1/4 x 24 . Track-Bed requires no pre-soaking like cork does: it remains flexible and won t dry out or become brittle! It aligns well with cork or Homasote applications. Install Track-Bed with Foam Tack Glue (ST1444). Pin in place with Foam Nails (ST1432).- SKU: SPWS4327