You easily see when it's time to refill since the spice jars are made of clear glass. The salt/pepper shakers can also be used for other spices that you like to add to your food. This series of spice containers includes grinders, shakers, jars and bottles – all with a simple and honest design. Twist the top of the salt/pepper shaker’s cap to choose between 3 different hole sizes for your spices. It can also be closed completely so that the spices stay fresh. Can be stored in a drawer together with UPPDATERA spice rack. The shaker's screw cap can also be used on other small jars in the CITRONHAJ series. Just as useful by the stove as on the dining table.