Eheim Substrate Pro 1L with bonus suction cups

Eheim Substrate Pro, approximately 1L.
This is an unopened, brand-new product.
Although unused, there are some storage-related stains on the bag.
As a bonus, we will include suction cups with clips for Eheim. These are also unused and unopened.
This is a used item sold by an amateur.
We would appreciate it if someone who understands this would purchase it.