CH0China kids amusement equipment factory-LONGLY PLAY CH0China kids amusement equipment factory-LONGLY PLAY About springCH0China kids amusement equipment factory-LONGLY PLAY The diameter of the spring is 2.6cm,very strong,can support not only the weight of children but also adults.CH0China kids amusement equipment factory-LONGLY PLAY CH0China kids amusement equipment factory-LONGLY PLAY CH0China kids amusement equipment factory-LONGLY PLAY Good packingCH0China kids amusement equipment factory-LONGLY PLAY Standard export packing to protect the goods from damage like scratch.Packing materials:Cotton and pp film.CH0China kids amusement equipment factory-LONGLY PLAY CH0China kids amusement equipment factory-LONGLY PLAY Our factoryCH0China kids amusement equipment factory-LONGLY PLAY CH0China kids amusement equipment factory-LONGLY PLAY