Greenhouse frames normally do not fail. Film Fails. Strapping works like a girdle or belt to tighten your film up, make it snug, and take slack out. If you need reliable wind control and film attachment, you need greenhouse wind control strapping made of durable polypropylene. Protect your greenhouse against wind damage. Save time by eliminating tedious repairs. Let greenhouse wind control strapping do its job, so you have more time to do yours! It is the cheapest wind insurance you can buy.