General description The 4Pcs Spa and Hot Tub Booster is designed to enhance your relaxation experience with its soft cushion massage mat. This inflatable seat pad is perfect for use in spas and hot tubs, providing comfort and support while you unwind. Technical specifications Package includes: 4 x Cushion Size: approximately 47 x 37 x 15 cm (18.5 x 14.57 x 5.91 inches) Material: PVC Weight: Not specified Compatibility and accessories Compatible with most spas and hot tubs Can be filled using a standard hose nozzle or directly in the spa Installation Ensure the water in your spa is chemically balanced before use Place the cushion on a smooth and flat surface for optimal suction Fill the cushion with water or air through the bottom injection port Usage Provides comfort and support while bathing Can help avoid hygienic isolation in public bathing areas Firmness and size can be adjusted by the amount of water used Other information Color: Blue Note: Light reflection and different displays