... 1.5 meters long [ suitable for age ] : 3 years old children [ material qualitative ] : EPE materials, environmental protection, non-toxic ... soft, resistance to bend around, cold resistance, heat resistance, fire resistance, waterproof, low thermal conductivity, buffer, shock absorption, ... , do not be afraid of gas leakage, discouraged, safety more protection. 2, foreign trade products, high quality. 3, ...