High impact and rub resistance honeycomb 380 microns semi-rigid PVC. Minimum weight (20 grams / 0.70 ounces) Cool look&feel honeycomb material. Easy to install. Automotive-grade materials. Won't yellow over time. Guaranteed. 9 parts for a universal protection system: 1 big part for the down tube; 5 arrow parts for extending the down tube protection or for the chainstay or for top tube; 3 circles for cable wear protection.