Petsafe Agility 3' Closed Tunnel Review When you want your dog to spend hours having fun, all you need is a Petsafe Agility 3′ Closed Tunnel. This tunnel is made with durable ripstop fabric which gives it the power to withstand the rough and tough activities of the dog while it is busy playing in it. When small puppies are scared of the chute in their classes, the closed tunnel is the right thing to get them trained. in Public bookmarkswith 3agilitycloseddogequipmentpetsafereviewtrainingtunnel Note: Petsafe Agility 3' Closed Tunnel Review