Passing embedded HTML element values through to Cart

Hello everyone,

I have coded a range slider (see link here) and have successfully integrated it into my Webflow site using an Embed block. I plan to use this range slider on product pages to let the customer decide their own price ranges for an order. I would like the values of the range slider to be submitted when a product is Added To Cart, however I cannot find any functionality within Webflow to allow for these values to pass through to the Cart.

Is this possible to do this through Webflow, or is more custom code required?