Show included accessories in a product image, or have a section with ‘included in kit’ images. Clarify it in the description as well.
List out the components in the package, along with a product image for each.
On IKEA, how are we supposed to know what each of these are without a thumbnail? (I added the red rectangles to show that there should be an image for each)
I would also recommend link each product to their product page (and open it in a new tab) if you sell the products separately.