WORLDWISE-Petlinks: Scents Of Security: Hippo Dog Toy. Features soft, fuzzy fabrics and adorable designs. Use clothing with your scent to provide comfort and security, it helps reduce separation anxiety and calms nervous dogs. This package contains one 7-1/2 inch tall comforting dog toy. Exterior: 100% Polyester. Lining: 100% Nylon. Filling: 100% Polyester. Petlinks products are principally made from recycled, reclaimed, renewable and certified organic materials. Imported.