Gamer intex brand , but I would also consider pool frames as well, usually the toy stores sell them, Spinneys Jnah 1st floor, or any Joue Club https://www.joueclubliban.com/en-US/categories/outdoors-sports/pools-water-toys/easy-set-pool-set/
xazbrat A lot of random toy stores have them--got a wading pool for my nieces at some nondescript toy store. If it is going on the balcony, just be careful of the water weight---a 3 meter round pool with a depth of 1 meter can carry 7000 liters of water weighing 7000 kg. so it may be a structural hazard ( ;5 meter depth will be 3000 kg and .3 (about 1 foot) will weight around 2000 kg) It is just something to keep in mind.