Shop › Silvervine Gall Fruit Chew Silvervine Gall Fruit Chew from $6.00 QTY: Select QTY 3 Pieces 6 Pieces Quantity: Add To Cart Added! Matatabi Silvervine Chew/Toy. We encourage you to supervise your Cat with smaller pieces. Matatabi Silvervine Chew/Toy. We encourage you to supervise your Cat with smaller pieces.