hard hat

I need to get about a two dozen sets of the ear muff style hearing protection that attaches to hard hats. Does anybody have any recommendations on brand and/or where to buy? ___________________

i use this everyday to set strut and rod it has also eliminated the need to carry a box end wrench...most of the time http://www.sears.com/shc/s/p_10153_12605_00930049000P?keyword=gear+wrench+vortex&prdNo=2&blockNo=2&blockType=G2 on another note has anyone ever used these..let me know what you...