Features: brand new and high quality Convenient connector design, compact size,lightweight ,portable ,it is easy to carry. The breathing trainer is made of safe and comfortable materials, ergonomically designed, high- quality and durable lung breathing exerciser. Breathing exerciser is resistant to bending, is not affected by the patients posture, and is easy to clean. Helps achieve for optimum lung capacity and restoring disrupted breathing patterns. Wonderful gift , it can be sweet wonderful gift for your friend , family or yourself . Specifications: Material: ABS Size:17.516.56.5cm/6.896.52.56inches Capacity:3000ml, 5000ml Note: Please allow 1-2cm errors due to manual measurement. Due to the difference betweeen different monitors,the pic may not reflect the actual color of the item. Package includes: 1 Piece Lung Breathing Exerciser