# Detailed mechanism

- [Fragment material](/best-mystery-box/english/game-play/the-best-mystery-box/detailed-mechanism/fragment-material.md): Different blind boxes will open different levels of material fragments, and material fragments of the same level can be upgraded and synthesized.
- [Prop card](/best-mystery-box/english/game-play/the-best-mystery-box/detailed-mechanism/prop-card.md)
- [VIP](/best-mystery-box/english/game-play/the-best-mystery-box/detailed-mechanism/vip.md)
- [Security deposit](/best-mystery-box/english/game-play/the-best-mystery-box/detailed-mechanism/security-deposit.md): The deposit is to make the game fairer and prevent malicious snapping.
