Colorful and safe for hours of shredding fun. Only SFB® uses Safe Shred™ Cotton Rope, which shreds into fine short cotton threads. Others use yarn rope that unravels into long thick sections that can entangle a bird. Big and Little Weave™ is woven by hand into a “Pony Tail” style bundle and anchored together with a stainless or plastic ring, and hung by a bird safe stainless steel quick link. The Big Weave™ is approx. 11 inches long, while the Little Weave™ is 8 inches.