Material: For the FD rubber safety cushion, the upper 3-5mm thickness is colour reycled granules ;the bottom 10-95mm thickness is black recycled rubber granules;For the ED rubber safety cushion the upper 5-10mm riginal rubber granules;the bottom is 10-90mm black recycled rubber granules.Our rubber tiles are tested and complied with , "Head Impact Criteria" (HIC) EN 1177: 1998 Colour: see the follows colour charts. The main function: GELIRubber tile cushion is easy to clean and keep the color durable,it can absorb the shock of people that damp on it, avoid been hurt, virtually maintenance free. Dries quickly after wet weather. Smooth, rounded corners wont pinch fingers at joints. Installs easily with comon tools. We also can spot sprinkle the non-seamless type rubber suchion. Special for kinder that play on it and outside Kindergarten playground; Sports Square; Body-Building equipment apparatus road Passage; Nursing Home; the Park Passage; Gymnasium, Sports Center. Our safety cushion meets all our playground equipments and help you create and environmentally friendly play area from becoming injuries. Especially for the climbing rock ground surface.