The Social Marketing "product" is not necessarily a physical offering. A continuum of products exists, ranging from tangible, physical products (e.g., condoms), to services (e.g., medical exams), practices (e.g., breastfeeding, ORT or eating a heart-healthy diet) and finally, more intangible ideas (e.g., environmental protection). In order to have a viable product, people must first perceive that they have a genuine problem, and that the product offering is a good solution for that problem.