Best jumper ever. I have a three month old who has outgrown all his laying down items (sleepers, loungers, swings) so we needed something portable to occupy him while making meals. He far prefers being upright and able to see things. This works perfect, can fold and go absolutely anywhere, and stow away when not in use. Was worried it wouldn’t work for three months, but it does. Nice and bouncy but also stable enough to keep baby upright. Inside seat comes out and can be washed. Also has three different height adjustments for growing. The mat at the bottom is a nice feature maybe if you have dirt on floors or taking to the beach, but otherwise is just a mat and isn’t what makes the item bounce. The base does lock into place to keep it from collapsing into itself. Most functional bouncer I have seen, because I really hate the big circle style ones, huge waste of space and not portable.This thing is so perfect for my five month old who acts like he can walk !!!! It makes him content it’s so easy to assemble. It’s already assembled it folds like a fold up chair. They should have been made this instead of those bulky walkers that’s babies can’t even push to walk in.I had one of these for my daughter and sold it fast forward 2 yrs now I have a son and he loves to stand with support so this is great and keeps him entertained and quiet for a whileSo nice having a play area for her wherever we went. Easy to carry and we used the sun shade for the summer time a lot going to the river for hoursShe loved it even insideThis product comes already assembled, which was great! Pops up in a couple seconds and locks in. Was a little harder to fold and put back in the bag, but it was made very well and sets up super easy.Got it for my 3mo old who already is loving to stand and play. Went to the beach with it and it was so perfect for her and very easy to bring. She uses the teething rings in it and plays with the book. I could also lay a blanket over the top and lay her there to nap (with supervision). Totally perfect for transporting!We took this to Gatlinburg with us on vacation for my grandson and the bears came for a visit and tested it out! Very durable! My 8 month old grandson loves it also!Item is of magnificent quality! Ever so swift dispatch. Packaging was exceptional. Fantastic seller.The mat underneath is too smooth and slippery for the little one to stand properly. When the height is adjusted to the 2nd level, the mat becomes loose, and even harder to stand. The top sags too much to offer good support if your little one still cannot stand well. The good points are that this is foldable and easy to bring out. Recommended for slightly older kids who are taller or can roughly stand.A mi bebe le encanta, lo tome en oferta y no pude hacer mejor compra. ya puedo descansar un poco mientras mi bebe se divierte brincando.El empaque llegó perfecto. Al armarlo notamos que está rasgado de la parte inferior. Ya iniciamos la devolución.I received this product day before yesterday. I opened it today. The base is torn. As shown in picture.Le encanta a mi bebé