The clay can be stored for next use but it should be stored in water so it doesn't dry out. Good for cleaning your car in a professional way. This clay bar is soft, and can remove different kinds of bolts such as grease, rust, dead insects contamination and over-spray etc. Features - Color: Shown in the pictures. - Material: PTU. - Size: Approx. 7.1 x 4 x 1.5cm/ 2.8 x 1.6 x 0.6 inch (LxWxH). - Easy and convenient to use.It is and is easily deformed (When you receive it, but it does not affect the quality) - Can remove different kinds of blots such as rust, grease, dead insects contamination and over-spray etc. - It can be used in many part of car's body, such as mirror surface, bumper and more. - Use the clay with water which has been added cleaning agent and detergent. Perfect choice for your car cleaning.