【Easy Assembly】 Dog fences are easy to set up within a few minutes under detailed instructions quickly and without difficulties. No tools are required. 【Safe & Secure】3.8cm/ 1.5’’ bar spacing can keep your pets safe in the exercise pen. The latch on the door locks automatically as you close. Rounded edges protect animals, which also prevents causing damage to wood/PVC floors. Stakes not only connect the panels firmly but also anchor the panels to the grassland or soft ground.