This glue gun has a clutch mechanism that prevents glue backup. The check valve controls glue flow. It has an interchangeable nozzle and built in drip tray/stand. It also has a high volume melt chamber for fast and steady even application. It comes in a re-usable storage box. It uses heavy duty circuitry, 6' cord. It uses Arrow's All Purpose, Sealer and Slow set glue Stix.