There are 3 different option types.
Select Input
Select input options allow you to offer a choice to your customer, from predefined choices that you have defined. For example, if you were selling a product that was a T-Shirt, you could use a select input to offer the customer a choice in size of "small, medium, or large". You can also make each option alter the price of the product, either increasing or decreasing it. This is explained in the "Adding Options to Products" topic.
Text Input
Text inputs allow you to gather information from the customer. For example, you might want to get some text for an engraving. You can also have Squirrelcart alter the price of the product, either increasing or decreasing it, when text is entered into the text field. This is explained in the "Adding Options to Products" topic.
Textarea Input
Textarea inputs allow you to gather information from the customer, and are almost identical to Text Inputs. The only difference is that a Text Input is a single line field, and a Textarea is a multiple line field. Textarea Inputs are ideal for gathering information for greeting card messages. You can also have Squirrelcart alter the price of the product, either increasing or decreasing it, when text is entered into the textarea field. This is explained in the "Adding Options to Products" topic.