You are sure to get the perfect Swiss ball for you with our range of different types and sizes. To pick the right size Swiss ball for you, you should be able to sit on it with your knees at a rough right angle to the ground. Depending on what you plan to use it for you may want to choose smaller or larger. Swiss balls are excellent for schools and gyms. Use them for games, improve balance or to increase difficulty of exercises. Anti-burst Swiss balls are ideal when you have safety in mind. They are great for use on rough surfaces and can be used outdoors.