Midwest Canvas 8MIL 15RND Standard 15' Round Blue Solar Cover, 8 Mil CONDITION:New 4GHz USB Type A wireless dongle CONDITION:Like New 4GHz USB Type A wireless dongle and USB charging cable support convenient setup and charging Extra Large Capacity: 155L storage space made with waterproof 600D Oxford fabric accommodates bulky gear securely The 8 Mil Blue Solar Blankets are an economical and environmentally friendly way to raise the temperature of your swimming pool and retain the heat for a longer period of time Our 8 MIL Blue Solar Blankets feature fantastic heat retention with their 8 Mil UV stabilized resin construction and hundreds of tiny air pockets which capture heat from the sun and transfer it to your pool water so you can have a relaxing time in your pool