Building masonry plastic changing head cement mortar grouting filling gun cement caulking four-piecematerial: plastic Introduce the cement nozzle tool! Water droplets or cement fragments on the wall are no longer a problem for you! With cement nozzle pumps, you can apply cement to walls, door frames, bricks, etc. Easy and comfortable. Made of high quality ABS material such as frame, nozzle and handle. The spindle is made of stainless steel and high density rubber for the suction vacuum outlet. The vacuum outlet is equipped with high density rubber.