These melts are made from 100% soy wax with essential oils and dried flowers. 3 scents are available: forget me not, lilac and lavender and 3 different shapes are available. Square, heart and circle. They come in a pack of 4 in re-usable organza bags to avoid unnecessary plastic. These melts give off strong scents with a long burn time of up to 10 hours. Being made from soy wax and essential oils they are more sustainable than your alternatives.