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 Convenient Storage : The sandpaper storage box supports free combination and assembly to meet your personal preferences 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 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 Thoughtful Details : Thanks to our self developed formula , this sandpaper leaves no residual adhesive on common grinding plates Parts List: Description : The sandpaper set includes 120 sheets of sandpaper , 6 sanding blocks , and 6 storage boxes . The sandpaper comes in 6 grit sizes , with 20 sheets for each grit , allowing you to choose the appropriate sandpaper according to different usage scenarios . Key Feature : Widely Applicable : It is ideal for beginners , temporary builders , straight wall builders , and painting builders , making your sanding work effortless . Specification : Product Name : Sandpaper Set Size : Sandpaper : 75x25mm/2.95x0.98inch Sanding Block: 75x25x23.5mm/2.95x0.98x0.93inch Material : Sandpaper : Latex + Aluminum Oxide +Polyester Film + Ceramic Sanding Block : ABS Caution : Do not use white dry sandpaper with water . It is recommended to sand from low grit to high grit . Peel off the release paper and to the sanding board to the sanding tasks . Do not tear the sandpaper with your bare hands , as this may affect the use of the sandpaper as it is unevenly sliced . The cutting power of the sandpaper be weakened after a long time of use , so please replace it with a new one in time . Color : Mixed Colors Note : 1 . There may be slight differences between the picture and the actual color of the commodity . We try our best to show you the exact color . 2 . Please allow slight dimension difference due to manual measurement . Color: As Shown Material: plastic Package Contents: 120 x Sandpaper (20 pieces of 400/600/800/1000/1200/1500#) 6 x Sanding Block 6 x Storage Box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.