Yellow turret board measuring 9&1/16" long by 2&3/4" deep for building Fender 5E3 Tweed Deluxe homebrew amps. Fits the chrome plated steel chassis we offer on this website. Mounts to chassis with standoffs, machine screws and lockwashers as needed. Most builders use four standoffs, some more. Holes for the standoffs may be drilled on the non-conductive board wherever there is sufficient clearance: take care to avoid shorting to the turrets or other conductive circuit elements.