> For the complete documentation index, see [llms.txt](https://hotdogs-1.gitbook.io/upgradable-traits/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hotdogs-1.gitbook.io/upgradable-traits/case-and-pool/cases-and-drops.md).
# Cases & Drops
## Pricing
When selecting a case, you can review the price of each available option together with its reward structure.
**The Standard Case is priced at 0.004 ETH**, offering a lower-cost entry into the same Upgradable Traits reward pool. **The Premium Case is priced at 0.008 ETH**, offering a different probability structure within that same reward pool.
Both cases can receive the same rewards. The difference is the **case price and the drop chance distribution**, not reward access.
This lets you compare **each case by price, drop chances,** and **rarity distribution** before choosing which one to open.
## Cashback System
Each **HotDog Recipe** obtained from a case comes with a 180-second cashback window once it appears.
If you do not want to keep the **Recipe** you received, you can return it to the reward pool and receive 20% of that case’s ETH cost back.
If you do not use the cashback option within 90 seconds, or if you claim your Recipe, the cashback option expires.
## Drop Pool
Through the Drop Pool tab, you can view all available **HotDog Recipes**, **trait categories**, **rarity levels**, and **drop chances** for **both case types**.
The Drop Pool tab helps you compare how the **Standard Case** and **Premium Case** distribute probabilities across the same reward pool.
Premium Case does not unlock a separate reward pool or exclusive traits. It only changes the odds of receiving certain rarity levels.
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