Dice set

This item encompasses a wide range of game pieces, including dice and decks of cards (for games such as Three-­‐‑Dragon Ante). A few common examples appear on the Tools table, but other kinds of gaming sets exist. If you are proficient with a gaming set, you can add your proficiency bonus to ability checks you make to play a game with that set. Each type of gaming set requires a separate proficiency.

Source: System Reference Document 5.1 · CC-BY-4.0 · 5th Edition 2014