Convenient Storage : The sandpaper storage box supports free combination and assembly to meet your personal preferences Smooth Sanding Experience : You can choose the appropriate sandpaper according to usage scenarios such as sprue sanding , shaping , and polishing , completing jobs in one smooth workflow . After use , it a little and put it into the storage box Sanding Block : The ergonomically designed sanding block features an angled corner design to fix the fingers for easier force application . Its curved fits the hand for a more stable grip . The sanding block is small and , causing no extra burden on the wrist High Professionalism : The low grit dry sandpaper (400-1000#) is made of latex paper combined with aluminum oxide particles , which provides optimal cutting and chip removal capabilities . The high grit sandpaper (1200-1500#) is made of polyester film , paired with a mixed abrasive of ceramic and calcined aluminum oxide , which can achieve better polishing effects and can restore most of the sanding power through washing . Note : Only the 1200# and 1500# sandpapers are water washable Thoughtful Details : Thanks to our self developed formula , this sandpaper leaves no residual adhesive on common grinding plates, Weight: 0.91161145337 pounds, Manufacturer: Pomoflexi