Dead Duck Prey Toy. Prey drive happens when this duck comes to play. A strong leather body for grip and holding, makes this a great toy for interactive play. Scores high is tensile strength.Eco-Friendly, Safe & Natural Dog Toys. Made from 100% jute & genuine leather. The toys are filled, using a coconut fibre filling. A range of toys, which maximises your dog’s fun, is safe and natural to play with, while at the safe time being eco-friendly. These toys do not have a squeaker, are very strong, a great toy for interactive play, and are part of a popular movement for eco-friendly, chemical free, natural products.