Frost protection pool cushion winter: air cushion pool winter distributes the pressure of ice and snow on the pool wall and cover to prevent cracks when the water freezes. In addition, it curves the cover high, reducing its load, prevents sagging in the middle, extends its service life and ensures that your pool stays safe and clean all winter long Particularly durable construction: this winter pool cushion is made of 0.4 mm thick PVC material and is therefore almost three times thicker than standard models. This material thickness ensures high chlorine resistance. Thanks to double-layer pressure line technology (reinforced seam connections), water leakage, cracks and air leaks are effectively prevented and thus ensures reliable winter protection Cold-resistant design: our pool winter cushion resists strong temperature fluctuations. It is durable at temperatures up to -20 C and reliably protects against frost damage - the practical accessory for winter protection of your pool Double valve design: the pool cushion has a unique Boston double valve that allows significantly easier and faster inflation. The valves are compatible with most standard pumps. Tip: fill the air cushion to about 80% You will receive: 1 x winter pool cushion, 1 x 15 m rope (which runs through the eyelets on all four sides of the inflatable cushion to attach it securely in the pool), 4 x self-adhesive repair patches (quick repair of small damage to ensure longevity)