With enduring style and worldwide appeal, the Spinsock ® windsock reflects a taste for quality and appreciation of design that blends form and function. The Spinsock name assures you that each one is handcrafted from the highest quality materials available. Tear-resistant fabric (made from hot-air balloon cloth) is flight tested for strength and specially coated for brighter color and fade resistance. Wax coated swivels keep movement free flowing. That kind of quality keeps the Spinsocks looking beautiful and helps them last longer than other windsocks.