The Polyvance 6074 Nitro Fuzer Accessory Shelf is designed to increase the functionality of the company's nitrogen plastic welders. The shelf mounts to the top of most Polyvance nitrogen plastic welders, providing useful space to organize tools and welding rod, the company says. This shelf folds out to expand the working space on top of the welder, and it folds back for compact storage. The shelf features an upturned edge to help keep items from rolling off, and slots to accommodate the triggers of most air tools. This shelf can be installed on any 6057 through 6085 nitrogen plastic welder.