SOOTHING MASSAGE SYSTEM: This hot tub spa features 105 jets and a wave-making massage system that releases bubbling waves to create a warm, relaxing experience in your home! DURABLE CONSTRUCTION: The inflatable walls are made of durable, puncture-resistant DuraPlus material, which is more resistant to tearing and stretching than PVC. Patented O-beam construction resists warping and less breakage, and the portable outdoor spa keeps its shape no matter how many times it is inflated and deflated. SAFETY PROTECTION: The hot tib has a reinforced cover with safety locking clips to prevent debris from collecting and retain heat more efficiently; Triple backflow protection with three mechanical valves designed to prevent water from flowing back into the working electrical section to maximize user safety. DUAL INSULATION HEATING SYSTEM: This hot tub's high-density, heat-resistant foam provides additional insulation that is up to 20 times better than comparable market performance, minimizing heat loss. ACCESSORIES: This portable hot bathtub includes a reinforced jacuzzi cover, pump, pressure gauge, cartridge and restoration patch, you can contact us at any time for any problems during use.