while the door has a drawn design made from one piece of steel

while the maximum size is 5-1/8 inches in length by 3/4 inches in diameter

For Use With: Shower Pushbuttons

They accept push pins and tacks

Wall Opening Depth: 3 1/4 in

Titan Round Motor Dual Run Capacitor,30/3 Microfarad Rating,440VAC Voltage - PRCFD303A Height-72" while the door has aMotor Capacitor Type: Motor Dual Run Capacitor; Microfarad Rating: 30 3; Capacitor Voltage: 440V AC; Hz: 60 50; Capacitor Shape: Round; Diameter: 2 in; Case Height: 3 27 32 in; Overall Height: 4 11 32 in; Overall Width: 2 in; EIA UL Base: A; Terminal Type: 1 4 in Male Quick Connect; Temp. Range: 40 Degrees to 70 Degrees C; Case Material: Aluminum; Cover Material: Steel; Standards: E136401, IEC 60252, RoHS Compliant