Antibacterial, proven to kill 99.9% E.Coli. Unique design to encourage enrichment activity. Suitable for all pigs from 6 weeks old and durable enough for use with primates. Reduces hierarchical behanvious in group housed pigs used for research. Extremely durable and long lasting. The more Porkyplay is chewed, the more the flavour intensifies. Available with or without chain.