Wachsen Rolling Bench 4ft Extender Kit Box A (6.5ft Long) is an add-on kit that likely extends the total length of a Wachsen Rolling Bench by 6.5ft. #HT212040-A #WachsenProfessional #RollingBench #HydroponicSystems&Supplies #RollingBenches #HydroponicsTown #HydroponicsFarming https://www.hydroponicstown.com/ht212040-a-wachsen-rolling-bench-4ft-extender-kit-box-a-6-5ft-long