Plastic
Its quite thick though at 6mm.
Also had issues with postage, normal postal locker cant accept as cannot be rolled due to thickness of mesh and so has to be sent to normal post office and normal collection
Had tried everywhere from Bunnings, Mitre10, other hardware and gardeing centres and even the US and nothing matched what i wanted.
Wanted something decent, thick and sturdy yet flexible and with good air flow. Good air flow was the priority, then looks.
Noticed ford mesh is similar and looks good as well so tried to find one like it and randomly checking, found one
Mesh honeycomb is 33mm wide and 12mm high so is nice and wide
Quote from listing below
http://www.ebay.com.au/itm/BODY-KIT...0?ssPageName=ADME:X:RTQ:AU:1123#ht_494wt_1363
Brand new quality plastic honeycomb mesh for after market body kits and bumper bars
Description :
~ Extra large sheet size - Length : 120 CM Length x 40CM width x 6MM thick , shape of the honeycomb size : 33MM X 12MM.
~ Give your bumper a factory look with this unique honeycomb plastic grill, easy to trim and clean.It come with mesh pin and make it much easier to install to any bumper. (see listing photo for details)
~ Made by flexible injection plastic, stone damage resistant. Great protection for your radiator, intercooler.. etc
~Selling it below wholesale price ( Just $42 ) .. so be quick !