How would I select a size (say size 11) on stockX using puppeteer?

I am trying to make a bot, and I need to select a size. For now, i’m just going to select 11. How would I do this, since all of the buttons have the same class?

I have tried to select the data-testid, but i’m pretty new at puppeteer and node.js in general, so it’s been a little hard.

const pt = require('puppeteer')

const url = 'https://stockx.com/buy/air-jordan-1-retro-high-og-chicago-reimagined-lost-and-found'

async function initBrowser(){
    const browser = await pt.launch({headless:false, defaultViewport: null, slowMo:10});
    const page = await browser.newPage();
    await page.goto(url,{waitUntil: 'networkidle0'});
    return page;
}

async function selectSize(){
    const page = await initBrowser();
    await page.$eval("div[data-testid='size-11'" , form => form.click() );
}

async function checkout(){
    await selectSize();
    await page.setViewport({width: 1920, height: 1080})
    await page.screenshot({path: 'test.png'})
}

checkout();

What ends up happening is this:

Error: Error: failed to find element matching selector "div[data-testid="#size-11"]"
    at CDPElementHandle.$eval (*filepath*)
    at async selectSize (*filepath*)
    at async checkout (*filepath*)