Use the PhysioRoom Faster Blaster Dual Action Pump to inflate the Gymnic Classic Plus Swiss/Pregnancy Ball. The Swiss Ball is an integral tool in most Core Strength training programs. These programmes are designed to strengthen the core muscles of the trunk and pelvis, which are important for posture and sporting activities. Even it damaged with knives, or other pointed objects there is no danger of sudden lack of pressure in this burst resistant quality ball. You can use this ball at home or in the gym. Anti-burst makes it the safest option during pregnancy.