JR4China kids amusement equipment factory-LONGLY PLAY JR4China kids amusement equipment factory-LONGLY PLAY JR4China kids amusement equipment factory-LONGLY PLAY About springJR4China 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.JR4China kids amusement equipment factory-LONGLY PLAY JR4China kids amusement equipment factory-LONGLY PLAY JR4China kids amusement equipment factory-LONGLY PLAY Good packingJR4China kids amusement equipment factory-LONGLY PLAY Standard export packing to protect the goods from damage like scratch.Packing materials:Cotton and pp film.JR4China kids amusement equipment factory-LONGLY PLAY JR4China kids amusement equipment factory-LONGLY PLAY Our factoryJR4China kids amusement equipment factory-LONGLY PLAY JR4China kids amusement equipment factory-LONGLY PLAY