Below are some additional specs! I also found a video of the weapon on a different site:
http://www.calimacil.com/scrow.html that shows off the "squishiness" of the head.
Thanks again for the help with this!
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The head and the body are solid Calimacil foam, and are thus extremely durable. The flat face of the War Hammer is also far softer than the normal Calimacil sword blade foam, which make it safe enough for use in any LARP. The detail on this weapon is amazing and spectacular!
-length: 32" or 80 cm (+2" or 5cm of top spike)
-weight: 0.85 oz or 24.1 g
-handle style: medium-firm
-handle size: 13" long x [1.25" x 1"] oval, or 33cm long x [3cm x 2cm] oval
-handle composition: Calimacil foam
-hammer head: 8.25" or 20.6cm
-striking surface diameter: 3+" or 7.5+ cm
-spike: 3" x 1.5" or 7.5cm x 3.8cm
-spike tips: blunt, rounded
-pommel length: 1.5" x 1" x 1.75", or 3.75cm x 2.cm x 4.4cm]
-foam weight: Calimacil proprietary foam, lightweight, sturdy, distributes force
-foam thickness depth to core on striking surface: +5/8"
-foam thickness depth to core on all non-striking surfaces: +3/8"
-foam thickness from core to end/tip: +1 ½"
-core composition: fiberglass rod
-core capped with a fiber matrix to prevent tearing or splitting of the foam