Simply add the item you want to donate to your eBay listing.
From the Selling Options, and from the options, select Thrombosis UK as
Please donate an amount of your choice
Add your item to your eBay listing.
Within the Selling options, locate 'Make a donation'. Select Thrombosis UK as your given charity.
Select the percentage of the item sale price you wish to donate to Thrombosis UK. This can be as little as 10% or 100% of the value.
NOTE: eBay for Charity helps you increase your chances of selling by letting you support a non-profit organisation. For your generosity, eBay will give you a fee credit if your item sells.