# Inclusion Preconfirmations

<figure><img src="https://1913553586-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FBk99eVkZsNrI6feXAyYs%2Fuploads%2FCahnCT7A1y908qcH5q2c%2Fimage.png?alt=media&#x26;token=dc363713-3507-49af-9b84-e7b94f78aa3b" alt=""><figcaption></figcaption></figure>

Inclusion Preconfirmations (or Inclusion Preconfs) are commitments whereby the Proposer guarantees to include your transactions within a specific block N. Bids are for a fixed amount of blockspace (e.g. 200k gas units), may be included anywhere in the block, and do not carry any reversion guarantees.&#x20;

Inclusion Preconf markets are created only when a Validator/Proposer has performed an initial, primary market sale of the Preconfs into the market. That is, it is not possible to ‘short’ an Inclusion Preconf.&#x20;

Transaction Fees: \[ 5% ] on Initial Sale, \[ 30 ] bps on secondary market trading TBC


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