Odd label on the bottom of kits delivered today.

[DoubtProcrastinate]

Received some additional research material today from a china vendor with a US warehouse. Shipped fast, arrived in less than 4 days. Inside the box was an additional label I haven't seen before but I am admittedly still a noob and wanted to ask what you all thought... My apologies for tearing the left side, the adhesive is fairly strong. Several of the kits had this sticker on the bottom.

 

[testyonenow42]

I've seen similar descriptions. It's related to getting through customs.