- A special shadowless sponge is used (shadowless means that the shadow is very light and does not affect the diagnosis after taking X-Ray). -The density of ordinary sponges is close to that of lungs, and shadowless sponges are suitable for lung X-ray (because it is impossible for a mass object not to produce some image). -Professionally cut and made, the design is based on many years of clinical filming needs, making it convenient to position clinical films, making the positioning more convenient and conducive to irradiating various parts, especially the supine position, which is more convenient. A good position is beneficial to later reading of films. diagnosis. -The positioner can fix pets and prevent people from supporting them during the shooting process, thus preventing people from receiving X-ray radiation damage. It is a safer and more effective X-ray positioning device for both humans and animals. -This device can also be used during ultrasound and some minor surgeries, which is beneficial to the immobilization of pets and improves their comfort, allowing for more scientific and humane treatment and diagnosis.