This is a more ergonomic extruder release button for the Anet A8. It has features in the base of the design that utilizes two of the tie-wraps that come with the A8 machine kit in order to retain the push button on the extruder screw. It's a real finger saver. Top of the unit is concave in order to prevent slippage.
Print the design with the screw hole downward. I use 230 degrees C for PLA with a heated bed at 50 degrees C.
Add two 3mm wide tie wraps into and out of the two sets of holes at the base of the design and tighten them securely with needle nose pliers.