3M™ Dynamic Mixing System Nozzle Rack makes it quick and easy to get a new 3M™ Dynamic Mixing Nozzle for use with our 3M™ Auto Body Repair Dynamic Mixing System. This rack holds the dispenser box that contains a supply of the nozzles. Making the job go faster and easier, the rack is another component in a system designed to boost efficiency and productivity. This magnetically mounted wire rack may be moved to different locations as needs change.The 3M™ Dynamic Mixing System nozzles deliver body repair products to the part faster than any manual applicator and static mixing nozzle combination. Our mixing nozzles eliminate the worry about adding too much or too little hardener to filler or glaze. The innovative mixing nozzle prevents over-catalyzation by blending a perfect ratio. The work time clock resets with every pull of the trigger, so you never have to worry about rushing to complete the job before you're actually ready. Because no air is introduced in the cartridge or while the components are being mixed in the nozzle, air pockets that produce pinholes in the finish are prevented.