HARD SIDE ABS TROLLEY CASE W/QUALITY TROLLEY SYSTEM COULD EITHER BE MADE BY 100% ABS MATERIAL OR MADE BY POLYCARBONATE MATERIAL THE FEATURING OF THE CASE MADE BY POLYCARBONATE MATERIAL IS THAT: INCREDIBLY LIGHT AND SUPER TOUGH/IMPACT RESISTANCE/WEARABLE/NO SCRAPE WHITE DOT AFTER ATTRITION.