# "Back To School" The [***Back To School***](https://drops.courtyard.io/back-to-school) drop is the very first application of our tokenization technology. We sourced close to 1,000 unique **PSA graded Pokémon cards** from trusted dealers to recreate a NFT drop experience with physically backed assets on **Polygon**. The drop will happen in March 2022 and the mint price will be set and announced closer to the drop, but we expect it to be between 0.15 and 0.25 WETH (ETH on Polygon) depending on the market rate.\ ‍\ Each pack will contain a unique **ERC721 NFT** on **Polygon** that can be traded on **OpenSea** and each NFT will be backed by a PSA graded Pokémon card. The collection will be revealed shortly after the drop and will include dozens of highly desirable cards from various sets - primarily from the Base Set Unlimited and 1st Editions. All the physical cards will be stored in a secured vault facility operated by our partner, **Brink's**. ### Drop details **Smart Contract Address:** [0x3eA68344480890d582Ce7Fd7cBf3e7fD7Fc23C20](https://polygonscan.com/address/0x3eA68344480890d582Ce7Fd7cBf3e7fD7Fc23C20#code)\ **Drop page:** [drops.courtyard.io/back-to-school](https://drops.courtyard.io/back-to-school)\ **Presale:** March 8th, 2022\ **Public sale:** March 10th, 2022\ **Number of NFTs:** 800\ **Mint Price:** 0.2 WETH\ **Max mints per transaction:** 2 NFTs\ **Max mints per wallet:** 10 NFTs ### Cards included in this drop *The full list of the cards included in the drop will be revealed at the same time as the reveal phase will launch, on March 22nd, 2022 at 9 AM PT.* ## Prepare for "Back To School" Drop Courtyard is running on [**Polygon**](https://polygon.technology), which enables fast and cheap transaction fees in the Ethereum ecosystem. To transact on Polygon, it is necessary to bridge funds to the Polygon network. Courtyard drops are priced in **ETH**, which on Polygon is available as *wrapped*-ETH (or [**WETH**](https://polygonscan.com/token/0x7ceb23fd6bc0add59e62ac25578270cff1b9f619)). To make transactions on Polygon, you need the native token of the Polygon network - [**MATIC**](https://polygon.technology/matic-token).\ \ If you run into any issues with these steps or have any questions, please reach out to our team in [Discord](https://discord.com/invite/CourtyardNFT). We're here to help! **Pre-requisite - Install MetaMask:** In order to mint Courtyard NFTs, you will need a crypto wallet that is compatible with Polygon. We recommend downloading and installing [MetaMask](https://metamask.io/) and [following their instructions](https://metamask.zendesk.com/hc/en-us/articles/360015489531-Getting-Started-With-MetaMask) to create a new wallet. If you already have MetaMask installed and a wallet address, you can skip this step. ### Step 1 - Add the Polygon Network to MetaMask {% embed url="" %} 1. Make sure you're connected to Ethereum Mainnet in Metamask. 2. Go to the Polygon website at [polygon.technology](https://polygon.technology/). Click on the "Use Polygon" dropdown menu and select "Add Polygon PoS Network to Metamask". 3. A MetaMask popup will prompt you to add the network. Review the details and click approve. 4. Optional: once approved, it will ask you if you want to switch to the Polygon network. You can temporarily switch if you want to, and you'll see that your balance is displayed in MATIC, which is the token on the Polygon network. Note that if this is your first time setting up Polygon, you should not expect to see any balance until you complete the next steps to bridge some funds over. ### Step 2 - Bridge ETH from Ethereum Mainnet to Polygon {% embed url="" %} 1. Make sure you're connected to Ethereum Mainnet in Metamask. 2. Go to [wallet.polygon.technology](https://wallet.polygon.technology/). 3. Connect your MetaMask and follow the prompts. You'll need to sign a message in order to authenticate that you own the wallet you're connecting. 4. After you've logged in, click on [Polygon Bridge](https://wallet.polygon.technology/bridge). Once on the bridge site, select the token you want to transfer (in this case we're bridging ETH). 5. Select the amount you'd like to bridge and click "Transfer". 6. You'll see a pop-up with a notification telling you that it will take 7-8 minutes to do the bridge (this is normal to ensure transfer is successful and not reverted). Click continue. 7. You'll be shown a gas estimate provided by Polygon, but don't be scared - it's usually too high. Click continue until you see the MetaMask pop-up, which will give you an actual gas estimate that is usually much lower. 8. Click "Confirm" in MetaMask. You should then see confirmation that the transaction is in progress. 9. Once the transaction has been confirmed, it will take about 7-8 minutes before the funds are released to you on Polygon. You can check the transaction status on Etherscan to verify that your deposit went through.