Convenient connector design, compact size,lightweight ,portable ,it is easy to carry. The breathing trainer is made of safe and comcomptiable withtable 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 optimum lung capacity and restoring disrupted breathing patterns. Wonderful gift , it can be sweet wonderful gift comptiable with your friend , family or yourself . Package Includes: 1 Piece Lung Breathing Exerciser Specifications: Material: ABS Size:17.516.56.5cm/6.896.52.56inches Capacity: 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. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks comptiable with your cooperation and well make you feel satisfied.