end of the hollow rectangular container 100 and is formed by one side of base 200 while inside fingers 154 may be of any suitable shape the preferred shape is that of a flat right angle trapezoid with the largest base molded or otherwise secured to the top 150 the preferable number of inside fingers 154 is two although other numbers are operable at the open end 120 of the container 100 top 150 has a plurality of top flanges 158 for holding the end piece 114 of a circuit board 110 in position to seal open end 120 these top flanges 158 combined with the clip 118 on board 110 to achieve the desired results of minimal movement of board 100 in container 110 top flanges 158 are shown as preferably four in number but that number is flexible each top flange 158 is preferably in the shape of an inclined plane or a triangular solid referring now to fig1 and fig1 a stack of three of container 100 is depicted each buttress 220 includes a base notch 222 base notch 222 receives a portion of the top rib 160 from top 150 to provide for stacking of a plurality of containers 100 this stackability and support mechanism provide stackability and protection for the board 110 contained therein.