• Helps maintain lung health by increasing ventilation and maximizing airway expansion. • Professional design with three colored balls corresponding to airflows of 600 ml/seg, 900 ml/seg and 1200 ml/seg. • Includes double card connectors that guarantee a tight and secure connection during use. • Made of durable, hygienic and easy-to-clean plastic material to prevent dirt accumulation. • Compact dimensions of 14,7 x 14,5 cm with a light weight of 228 g. • The package contains a respiratory trainer, instruction manual and storage box.