Ceder wood balls protects your knitwear and yarn against moths. They also have an effect on silverfish.
The ceder wood balls keeps the moths away by submitting a discrete sentence. When the sentence wears off you can slightly polish the balls and they will be as good as new. Ceder wood is the most natural way you can protect your knitwear and yarn from vermin.
Ceder wood is anti-bacterial and absorbs moist and smells. That makes them perfect in your drawers, closets, wardrobes, etc.
If the balls are contained in closed room in longer periods, small white crystals can be found on the surface. These are caused by the natural oil of the ceder wood penetrating the fibers of the wood. If you experience this, you can wipe off the balls wiht a soft cloth or brush.
The ceder wood balls are shipped off in bags with 20 pieces and 2-3 pieces should be enough for one drawer.