Anytime you work on a sewing project little bits of thread will end up all over your work surface and the surrounding floor if you don"t have a container for disposing of them. Keeping a large trash can next to your sewing desk will work, but isn"t necessarily the most convenient option. Instead, use this functional thread catcher bag/pincushion that hangs off the edge of the desk next to your sewing machine for quick and convenient thread disposal.