# Gas Refuel
## What is Gas Refuel
Powered by LayerZero, the Gas Refuel feature brings significant convenience to Web3 users.
Gas Refuel allows users to seamlessly convert the native token of one blockchain into the native token of another—quickly, easily, and at a very low cost.
## Gas Refuel vs Bridge
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Gas Refuel
* Convert native tokens from one blockchain to another
* Supports converting from one chain to multiple chains in a single transaction
* Very low transaction fees
* Currently supports only EVM-compatible chains
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Bridge
* Transfer any type of token from one blockchain to another
* Supports only one destination chain per transaction
* Fees are relatively higher (depending on the chain), generally more expensive
* Supports a wide range of blockchains (depending on the service provider)
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## How to Use Gas Refuel
To use the Gas Refuel feature in the KEYRING PRO Wallet app, follow these steps:
1. Select the native token you want to spend
2. From the menu, choose **“Multi-chain Gas Refuel”** (this option is only available for native tokens on EVM-compatible chains)
3. Select the destination chain(s) — you can choose multiple chains at once
4. Set the amount you want to send per chain (this amount will be sent to each selected chain, not the total)
5. Confirm the transaction, and you're done
## FAQ About Gas Refuel
### What chains does Gas Refuel support?
Gas Refuel currently supports **EVM-compatible chains (Ethereum Virtual Machine)** through LayerZero.
When you use the Gas Refuel feature in KEYRING PRO Wallet, the app will automatically display all supported chains. You can simply select from the available options.
### Can I select multiple chains at once?
Yes, you can select multiple chains in a single transaction.
### Is the gas amount split across selected chains?
No.
The amount you set is applied **per chain**, not divided.
**Example:**
* You set: **0.1 ETH**
* You select: **3 chains**
→ You will send **0.1 ETH to each chain**\
→ Total: **0.3 ETH**
### Are there any fees for using Gas Refuel?
Yes.
All blockchain transactions require fees paid to network validators.
Gas Refuel uses infrastructure provided by LayerZero, so:
* Fees are determined by LayerZero
* Costs are typically **low**
* Often **more efficient than traditional bridging methods**, since it avoids multiple manual steps
### Is Gas Refuel developed by KEYRING PRO Wallet?
No.
This feature is **powered by LayerZero** and integrated into KEYRING PRO Wallet.
KEYRING PRO Wallet is responsible for:
* User interface (UI)
* Simplified user experience
LayerZero handles:
* Transaction execution
* Fees
* Speed
* Routing and processing logic
### What should I know when using this feature?
Cross-chain transactions via LayerZero are becoming increasingly popular due to their efficiency and convenience.
However:
* KEYRING PRO Wallet relies entirely on LayerZero’s infrastructure
* Issues related to transaction processing (e.g. delays, failures) may originate from LayerZero
If you encounter such issues, it’s recommended to contact **LayerZero support directly** for the most effective assistance.
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