What we needed:We needed a gate that's wider so it doesn't have to go directly at the (top of) stairs since it's more dangerous to use while carrying a baby, instead we needed it in the wall way between baby's room and stairway. This set is wide enough to fit 70"+ and came with everything I needed.Contents:2x narrower extensions2x wider extensions1x main door section4x tension screwssome blocker to adhere to wall to further block the gate from falling (we didn't need to use this)1x base unit to put under the door so it stays in placeInstallation:Worked great, I was able to put it together myself without any help within maybe 15mins. Very straight forward instructions.Usability:Very sturdy and high quality material for all the gate / extension pieces. Connection between the gate and extension was very sturdy as well, I don't think our 1yo can push hard enough for it to fall over despite it being tension mounted.The door is easy to open with one hand and it opens both ways which is awesome! Door also auto-shuts if you close it harder, it will make a slight click noise unless you are holding onto the locking mechanism while shutting it.Height (roughly adult thigh to waist height) is perfectly enough to block baby but not so high we have problems passing through the door while holding baby.Overall I LOVE this product and we've tried a few gates already in the past. This one is the most complete and sturdy so far and relatively good price.