The invoice issued by the sitting flexion tester belongs to the category of cultural and sporting goods. According to the query related information, it shows that the billing of fitness equipment belongs to cultural and sporting goods. When invoicing, all sporting goods such as treadmills and elliptical machines. , as well as sportswear, shoes and hats worn during sports or competitions, and sporting goods related to competitions, you can issue invoices for sports and fitness business. Now, all invoices can only be reimbursed if they are related to the project. Remember that your sporting goods belong to sports when invoicing.