Most listings do not list a separate closure; they use a simple metal keyring loop or standard keyring-style attachment to keep keys together.
They’re made from metal and plastic; some listings specifically note vinyl and durable acrylic materials.
Common motifs include character-style collectible figures, replica Dragon Ball capsules, and Dragon Ball star designs (especially the four- and five-star balls).
Care instructions vary: one listing explicitly says “Do Not Wash,” while many other listings do not provide any care or cleaning instructions.