1,50% recycled material, 2,eco-friendly product. 3,EN71 & ASTM standard 4,Flexible, not easy broken 1, 50% recycled material, eco-friendly product2, EN71 & ASTM standard3, flexible, not easy broken4, 7" length with eraser5, 3.5" length available6, OEM 7, round, triangle or hexangular8, different paint color or eraser color