1. The machine is suitable for genuine leather shoes, synthetic leather shoes and comprehensive enclosed shoes to grind flatten after lasting which happened wrinkles. Since, those will being with grind roughen & flatten two functions. 2. Adopted two steps electronic vari-speed switches, the sanding belt will not pasted the glue, without defect for grinding wheel machine. 3. Equipped with air dust blower for which, can be cleaning after grinding processing and reinforced the pasting force. 4. This machine and dust-collecting to integrative design , does not take the space light and move easy.