Petsafe Dog Containment products have gone through rigorous testing much of which is done by performing the tests in a real world setting rather than simply going through a check list of scenarios in a lab. To unsure they are giving you the best product possible; Petsafe hires top dog trainers and veterinarians to review and consult on up and coming projects. Dog Containment can be most essential and often times difficult to achieve in a way where you feel your pet is safe but still free to roam around your property. With Petsafe products this task is now easier than ever. Petsafe products are among the most reliable available.