CANARY Safety Box Opener Non Sharp Blade [Kai Chan], Extra Safe Package Opener Tool, Made in Japan, Blue

Over the last seven years I've been using the tiny, Spyderco Bug penknife to open packages. I thought this product might offer an alternative and, with its short, rounded blade might be less likely to damage the contents of the box - not that this had ever happened with a penknife. My impression, so far, is that it isn't as effective as my penknife was. It particularly struggled with the packing tape, popular with Amazon, which is reinforced with thread. At this point, I had largely reverted to using a penknife. A few days later, and for the very first time, I managed to stab myself in my left thumb while opening a box with my penknife. This resulted in a re-evaluation of the virtues of the rounded blade on this box cutter. It was a case of weighing up ease of use against having two opposable thumbs. In summary, I think it has a certain virtue if safety is your main priority, but I think there are more effective tools for opening boxes. Update: I now have an Olfa ARSK-10 box cutter. It is more versatile as it has a short, not particularly sharp, blade for opening packing tape, and a concealed blade to deal with plastic wrap, plastic straps etc. The concealed blade is also replaceable, which is useful but may be of concern in households with young children. But, for me, it's the best solution so far.