Due to its patented cover that wrapped around the base when closed, combined with its trapezium shaped design of a “Big Top, Small Bottom”.

When stacked, the Small Bottom of the box above sits on the Big Top of the box below. Compression from the weight above creates a depression ‘hole’ and at the same time, effectively spreading evenly outwardly, working like a LEGO, maintaining an upright perpendicular position sturdily.

As such, stacked HealthyPack does not topple easily as compared to Non-wrapped around “Cover Over Base” design type of packaging.