PACKAGE - 4 x Cushion; Size:about 47x37x15cm; Notice:Please make sure that when using these seats the water in your spa is chemically balanced. 4 CUPS CUSHIONS - Easily filled using standard hose nozzle or fill by in spa.Suction cups prevent seat from floating or moving. MULTIFUNCTIONAL INFLATABLE HOT TUB SEAT & WATER-FILLED SPA BOOSTER SEAT PAD - 1.The bottom water port can be inflated, also can be inflated and filled with water; 2.In areas where there is a custom of bathing in bathhouses, this inflatable cushion can effectively avoid hygienic isolation from public areas. The Inflatable cushion size about 47x37x15cm/18.5x14.57x5.91inch, easy to carrying and storage. NICE DESIGN - Heavy-Duty heat material.Firmness and size can be adjusted by the amount of water used.<br><br>Please note:Slight color difference or difference in kind, does not affect the use, please do not mind, thank you! WARM NOTICE: 1. Please make sure to keep the water balance when using these seats in your spa; 2. If the balance is off the product may not stick to the ; 3. Only in a smooth and flat place, can the air be discharged to form a vacuum adsorption on the top. Colour:Blue Material:PVC<br><br>Package Contents: 4 * Spa Seat<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.