Vinyl Storage Bag We include a vinyl storage/carrying bag with each of our Snowbird awning mats and sunscreens wherever possible, However some mats may not come with this free bag due to limited quantities. These free bags are constructed of heavy gauge vinyl but can become brittle and crack in colder weather. Due to this the vinyl storage bags do NOT come with any type of warranty what so ever. Stake Down Kit Each of our beautiful Snowbird RV awning mats come with an 8 piece stake down kit absolutely FREE! Many of our competitors charge extra for these or don't even offer a stake down kit at all! These FREE kits are very simple but extremely effective and will hold your new Snowbird patio mat down even is high winds but yet they are easy to remove by lifting straight up (NEVER pull on the mat to remove the stake!) 7 inch aluminum stakes and large galvanized fender washers will retard rust even when left in the ground for long periods of time. Additional stake down kits may be purchased for $4.95 each