1.Environment-friendly PS anti-static materials 2.The diameter of disc is 178mm,330mm and 330mm »»Plastic Reel1.Environment-friendly PS anti-static materials2. Color: Blue/black/white3.Size: The diameter of disc is 178mm,330mm and 330mm;the diameter of axis is 60mm\100mm\150mm\180mm;the width is 8mm~72mm,it can be mix according to need