Several have commented about ESD. The 12" X 12" pressed paper egg crates are guaranteed not to cause ESD damage your K3's screws, nuts, standoffs and lockwashers! ;-) These crates come in a large case holding 30 dozen eggs. There are 12 total holding 30 eggs each (6X5)...and the price is cheaper that anything else mentioned (i.e. free). 73, Bill W4ZV