A thin portion is provided near an opening of a bag body to a main body of a belt-like base connected to an engagement portion. The sprayer is configured to spray water. The watermark can be made to be imperceptible to humans. Crosslinking is typically achieved through the formation of free radicals that link together to form a plurality of carbon-carbon covalent bonds at the conjugated diene endblocks. The method further involves communicating the metadata to the MIS, storing the metadata in the data store, and communicating the MID and the metadata to a second client device.