This track folding adjustable cup holder, you can install almost any other boats with track system, such as Lund or Tracker Boat This adjustable retailer arms, hold cups or cans from 2 1/4'' to 3 3/4'' diameter.Easy to install. Specifically designed for marine applications. Cup holder adjusts to hold and secure different size cups and drinks. Fold up drink Holder fits in tight compact areas. Folds up when not in use Item Number: P54193BK ( Black Color ) Pactrade Marine Boat Tracker Versatrack Adjustable drink holder / Lund Sport Track Folding Adjustable Cup Holder. This fold-able Cup Holder produces by high durable non-scratch surface. You can folds easily. It can fit almost any can or bottle. This compatible drink holder works for Lund, tracker, and any other boats with a track system.