This solves so many problems, I can't recommend it highly enough. We have two beagles and this is a godsend for us, especially when traveling to places that are less dog-safe or have more temptations (Christmas tree, holiday foods). It requires basically no assembly and is lightweight and portable. You can add or subtract pieces to create whatever size you need. Some examples of how we've used it: as a gate (keep them from venturing up/down stairs, prevent slipping out the door - adult humans can easily pass through), as a big pen (play together securely while the humans do other things, let them relax in a safe space after being played with by little kids and other dogs during family parties), two smaller pens for sleeping (so much easier than traveling with crates), and as a blockade (keep them away from Christmas trees, furniture they're not welcome on, etc.). Obviously given their temporary/portable nature, these aren't the tallest or sturdiest structures in the world so kids/dogs could knock them over and escape if they tried hard enough but as a supplement to adult supervision they are excellent for creating varied spaces for the whole family.