Use for everyday food preparation. the small holes let you add spices to foods and are great for mixing or cooking. glass bottles keep spices on display and each sticker is clearly labeled for easy identification of individual spices. spices not included. we use an inclined opening design to maintain a non-slip grip over jars. and jars slide into position with ease and stay securely in place. it is also a great gift idea. the revolving spice rack set is a perfect present for family, friends, or cooking lovers.