Arkon’s GN-BKT2013 passive holder is compatible with select newer model (2013-2015) Garmin nuvi GPS devices, including 42, 42LM, 44, 44LM, 52, 52LM, 54, 54LM, 55, 55LM, 55LMT, 56, 56LM, 56LMT, 57, 57LM, 57LMT, 58, 58LM, 58LMT, 67LM, 67LMT, 68LM, 68LMT, 2457LMT, 2497LMT, 2539LMT, 2557LMT, 2558LMTHD, 2559LMT, 2577LT, 2589LMT, 2597LMT, 2598LMTHD, 2599LMTHD, 2639LMT, 2689LMT, 2699LMTHD models, and is meant to be in addition to or to replace an existing holder. (These Garmin nuvi devices should include a 17mm swivel ball-compatible holder.) This package includes only the Replacement or Additional Passive Holder for Garmin nuvi 2013 and newer Series GPS. Attach the bracket to any 17mm ball compatible pedestal (also sold separately), then insert the device into the bracket and adjust accordingly.