I am a serious Puzzler. I collect some and pass on other puzzles. In order to keep the puzzle secure I use zip lock bags for pieces and a RUBBER BAND around the box. Bands beat the living hell out of the other 3 above mentioned both for storage and ease of access by the next Puzzler. FTP
GOOD when you need a larger RB! NOT available in my local store for a year+++. Kept asking store staff if they had any so they finally ordered some for stock!