four independently adjustable rings lets you get a good even heat and if you need to you can just use the inner ring(s) to give you a very low heat. roses come in a range of colors, so if you decide to go the traditional route, the rule of thumb is to consider your valentine's tastes. in different ways, rose and iris have to decide what it would mean to become their mother and if they’re up to it. a single ticket in advance is $23. depending on your business model, you will have to decide which option is right for you. 