A hand trowel for vibrating concrete in order to smooth the concrete. In a load display device for a dump truck, a plurality of cameras are installed and the load display device monitors the periphery by using a bird’s-eye image that combines images obtained by the plurality of cameras. When the first tenon is driven along a second axis, the cover and the modeling platform are driven along a first axis to open the tank. Textiles which are 50 to 100% by weight wool and have been finished with the compositions exhibit low shrinkage and low felting tendency during washing operations.