Dengerous to use at any age! Should be withdraw and money send back to buyers! I bought two and I wish I can send them back !
Unless you have fully trained your dog. At the arrival I was v impressed of how well it's made and of it's good quality but while using it it is a hell! The panels must be settled in the ground or attached firmly to the walls otherwise moves constantly. While pups growing it more dengerous in use! Many time puppy got its paw stuck between the panels at the top and luckily I was at home! Also there are most panels faulty and wrongly finished and it ca rip the paw in a half while puppy jumps on!