The built-in tunnel allows the mouse to enter the restrainer independently, without handling pressure or force. This reduces stress, improves cooperation and creates a smoother workflow during tail-vein procedures. The result is faster setup, better animal welfare and a more consistent injection process.

The system allows smooth and controlled rotation of the mouse, ensuring optimal alignment for tail vein visualization without unnecessary handling. Once the ideal angle is reached, the position can be locked, providing stability during injection. This improves accuracy, reduces time and minimizes stress for both operator and animal.

The integrated backlight illuminates the tail from below, making the vein clearly visible and easy to locate. This reduces guesswork and improves accuracy, even with less experienced operators. The result is faster injections, fewer attempts and a more consistent workflow.