At the frog end, a screw adjuster tightens or loosens the hair. It tightens and stiffens fabric stretched over airframes, which renders them airtight and weatherproof. The more one pulls, the more the circumference shrinks and the trap tightens. Lecter then tightens the noose around Mason's neck so hard it breaks his spine. When the police tightens their noose and ties loose ends, the killer is traced. With pressure, the noose tightens the wrist coil, securing the hands. This problem naturally diminishes as the cap tightens. When the glue dries, it tightens the canvas. Squeezing the brake lever tightens the cable against the channel to produce braking friction. The snake then tightens its grip as the prey struggles, which leads to suffocation. The wrestler then tightens their grip to choke an opponent by compressing their throat. A spanner tightens the joint firmly. Lisa refuses to respond, and Dolza tightens his grip around her. This action tightens the spiral and increases the loss of altitude. If the prey moves around in the trap, it tightens and digestion begins more quickly.