1、UPGRADE VERSION: Cable ties and anti-slip pieces added in. Cable ties help build doors or ramps or reinforce the whole structure. Anti-slip pieces prevent connectors from slipping on the floor. 2、DIY EXPANDABLE: Make qualified metal wire grids into different shapes, a low wide exercise pen, or a two-storey premium villa 3、FOR VARIOUS SMALL ANIMALS: Hedgehogs, hamsters, guinea pigs or rabbits, they can all have fun in this fence. Easy to keep an eye on them from any angle 4、EASY ASSEMBLY: Easy to put together with the illustrated instruction and included mallet. Use cable ties to achieve even more features like doors or ramps 5、100% SATISFACTION GUARANTEE: We are always available to provide professional customer service before and after your purchase, so don't wait any longer and enjoy it right now Plastic Pet Pens  The heavy-duty molded plastic playpen will last for years. The portable pet fence is lightweight and easy to assemble. Taking apart the indoor pet pen is just as simple, so you can quickly store and transport it. The plastic panel for dog portable playpen interlocks securely with full-length connecting rods and also has non-skid rubber feet to protect the floor. Position the pet playpens in different shapes depending on your space and pet's needs. Perfect for your puppy or small-to-medium sized pet.