The transparent material of the CHUDESNIK cups serves a specific, practical purpose. It allows you to see exactly how your skin is reacting to the suction in real-time. You can directly observe the degree to which the skin and underlying tissue are being drawn into the cup. This visual feedback is crucial for adjusting the pressure more easily and accurately. If the skin is being pulled too aggressively, appearing overly taut or discolored, you can release the cup slightly or reposition it with less force. This helps prevent discomfort and allows you to tailor the intensity to your personal tolerance and the sensitivity of the body zone you're working on, making the massage both safer and more effective.