Description: the first: features: wall thickness: 0.7 mm, applied: 5 kg of the fault, fixed number of year of life: 1-2 years to powder

After packing: clear no volume, color: diversity, fire prevention sex: not fire, (your tests: pull, fracture and stretched, burn)

Second, features: wall thickness: greater than 0.7 mm, pushing: more than 5 kg tensile fracture, fixed number of year of life: 3-5 years become powder, after the packing: realistic no volume, color: diversity, fire prevention sex: not fire, (your tests, with 50 kilograms force pull, fracture and stretched, burn)