[type]: 59661

[Specification]: 41cm * 30cm (16 "x 12")

[material]: high strength composite PVC

[net]: 0.3 KG

[structure]: 3 gas chambers

[accessories]: exquisite color box packaging， in the instructions in English

The use of age: 2-5 years old

Features: convenient， stable， non-toxic， cushioning the impact of strong， strict pressure experiment

Executive standard: GB GB-6675 us ASTM F-963 EN-71 of European Union