Got this ball to do exercises on at home, it's great. the pump that comes with it is quite good compared to others that come with hand pumps - gets a bit tricky once their ball gets full and the air pressure bites back but it's manageable pumping it.
Once pumped up, it looks like (or even better than) a ball you'd find at a commercial gym. Leaves no marks on the floors and is very robust. haven't felt like I was pushing any limits on this with using it from a weight perspective.
kids also love playing with it, so keep it away from breakable things
Black Mountain Products professional grade stability balls are Exceptionally durable exercise balls designed for gym, office and home use. Each Pro Series ball is designed to hold 2000lbs of Static weight and is Anti-Burst resistance up to 1000lbs of Static weight. Black Mountain Products gym balls can improve your core strength, balance and overall agility. Each exercise ball is designed with dense walls for the ultimate support and durability for any use. Size options 45 CM (5' and under) 55 CM (5' to 5' 6 tall) 65 CM (5'6 to 6' tall) and 75 CM (6' to 6 5 ) and 85 CM (6' 5 or taller).