Sarah's Silks is a family-run brand from America and the leaders in playsilks around the world. They use Habotai silk, an ancient product from China, that are biodegradable. The silk farms grow lots of mulberry trees and feed the caterpillars the leaves by hand. Pesticides or chemicals cannot be used, because the caterpillars are very sensitive. We love that their silks are 100% natural and perfect for open-ended play.