PACKAGE INCLUDE Includes Full Set of Tube Frame Assembly for P10 except for cushion. UPGRADE CONNECTION DESIGN Retains the separable design, and switches to a fixed connection design for a more convenient and firmer connection. NO NOISY NO LEAKAGE The new fixed connection design completely eliminates noise and leaks, ensuring a quiet and comfortable sleep night. SNUGLY FIT & HOLD IN PLACE Snugly fit and ensures a good seal to keep from sliding.Our products are protected by patents