Based on this product's specifications, here are some alternatives and similar models
Exercise gym ball Springos ACT0146, 75 cm PVC, non-slip surface, pump included, max load 150 kg
Summary description:
Springos gym ball ACT0146 is a 75 cm PVC exercise ball with a non-slip surface designed for fitness, rehabilitation and core stability training. The 1,100 g ball supports up to 150 kg and is supplied with a pump and two air valves. Suitable for home workouts, pilates, physical therapy and office seating as an active chair alternative.