Great Stuff Smart Dispenser Yellow Polyurethane Insulating Foam Sealant 12 oz Houesewares Perfect size for 1 2 servings Raincoats Perfect size for 1 2 servings for added comfort Labyrinth construction seals and protects the motor and bearings from dust and debris for longer tool life Slide switch design with lock on for added user convenience Protective zig zag varnish seals the armature from dust and debris for longer tool life All ball bearing design and metal gear housing for added durability Machined bevel gears provide up to 2x longer service life than previous models Side handle is positioned at an increased 20° angle for added comfort Two position adjustable side handle for operator covenience The Smart Dispenser allows the user to reuse Great Stuff for up to 30 days stainable and sandable