WooCommerce Chained Products Automatically adds “chained” products to cart when “main” product is added.

• When a customer buys this “main” product, they pay the “main” product’s price but get all the “chained” products automatically. They will also see “chained” products in the cart and in their order. The chained products can be priced individually as well.
• Chained Products plugin seamlessly handles variable products, subscription, multi-level nested offers, pricing, virtual product access and discount application. It’s also compatible with the most popular other WooCommerce plugins.