I think it's THIS one. The shelves come with it. We did secure the shelves with zipties and then anchored the whole thing to the walls of my porch for good measure. One day I want a glass sunroom off the master bedroom, and fill it with plants!
It's a 3m x 2m plastic greenhouse. It's available on lots of stores and online stores, for example: https://www.amazon.com/Greenhouse-Outdoor-Portable-Anchors-Seedlings/dp/B08C2CNK3H/ref=mp_s_a_1_8?crid=24QUX5OSSBAL6&keywords=greenhouse%2B3m%2B2m%2Bplastic&qid=1655128875&sprefix=greenhouse%2B3m%2B2m%2Bplasti%2Caps%2C146&sr=8-8&am...
If you are putting up a greenhouse like this: https://www.amazon.com/Greenhouse-Indoor%EF%BC%86Outdoor-Shelves-Portable-Gardening/dp/B08C2CNK3H?ref_=ast_sto_dp&th=1&psc=1
It is entirely possible to protect the top of the greenhouse by using sheets of clear polycarbonate (Either twinwall or corrugated). You can ziptie these to the inside after you cut them to size and it will protect your plants in case a branch comes down. If you do it to the outside, you will have to create a little roof structure, make sure the panels are connected together and secured from blowing away.