Velbon PH-157G quick release lever

thingiverse

The Velbon PH-157G head's quick release mechanism leaves much to be desired, as it places all of the camera's weight on a single fragile plastic piece. This design flaw makes the plastic component susceptible to breaking due to its thin walls and excessive number of unnecessary recesses. This replacement part is designed with thicker plastic and a streamlined design, featuring only one recess for the spring.