TPU material bag is transparent, strong, fluid impervious, highly abrasion resistant, and highly elastic. Superior bag provides secure specimen encapsulation. Automatic bag opening upon deployment for easy specimen maneuverability and insertion. Automatic bag closing tight when removing to prevent from inflammation. Nitinol memory alloy opens mouth widely when deployed to assist in easy specimen insertion. Big bag capacity accommodates a wide range of specimen sizes. Easy-to-grasp handle for straightforward retraction and deployment.