Material: 100% polypropylene. Standard color: White (Customizable). Function: Absorb oil, refrigerant, water and any liquid, such as: gasoline, hydraulic oil, vegetable oil, antifreezing solution, acetone, xylene, etc. Burning after using, ash<0.02%. Our type have dimpled type and perforated type. The most common size is 40cm*50cm. The thickness is 2mm, 3mm, 4mm, 5mm, etc