You've encountered a Random Encounter accessory. This viny dice box contains storage space for one set of a 7 peice dice set.
Extremely durable, this box will protect your most prized dice set within your collection. The lid straps in using a tight button, meaning those dice won't just fall out into the bottom of your bag of holding.
Disclaimer: We take no responsibility if you roll a nautral 1 on closing this box correctly, thus causing the dice within to infact fall out into the bottom of your bag of holding.