Mouse Refillable Slivervine with 3 Slivervine teabags with ziplock bagWatch your kitty toss, flip, kick and enjoy, it's Gigwi silvervine toy. We only use top quality utilized Changbai mountains silvervine for GiGwi refillable silvervine toys. These toys have a special fastener, so that fresh silvervine teabags can be added again and again to last all your cat's nine lives. Silvervine leave is a part of a natural plant, silvervine, growing in mountainous regions of Asia and having long been known as a cat attractant. It