# Glass Types

There are three glass types, i.e., common, rare, and superscript. A summary of all glass types and relevant attributes is shown in the following table:

<table><thead><tr><th width="188">Type</th><th>Max Allowable Watchtime per day (in minutes)</th><th>Reward that can be earned by maxed out common glass per day (in SPAY)</th><th>Max Reward Rate Per Minute</th></tr></thead><tbody><tr><td>Common</td><td>960</td><td>39.60</td><td>0.0413</td></tr><tr><td>Rare</td><td>1020</td><td>52.80</td><td>0.0518</td></tr><tr><td>Superscript</td><td>1080</td><td>66.00</td><td>0.0611</td></tr></tbody></table>

Each glass type offers incremental benefits over the other, i.e., a rare glass provides more benefits in terms of a net payout than common glass, and a superscript provides better rewards than a rare one. The glass types are differentiated based on payouts, so the users are incentivized to hold a higher glass type.

**However, the composition of glasses is such that there are 70% common, 25% rare, and only 5% superscript glasses, which consequently makes superscript glasses more valuable than rare.**

Although superscript glasses offer a significantly larger payout as compared to the other ones, they represent only 5% of the total number of glasses minted.