There are different types of warranties that you can offer to your customers, such as express, implied, limited, or full. Express warranties are those that you explicitly state in your marketing or sales materials, such as "30-day money-back guarantee" or "lifetime warranty". Implied warranties are those that are implied by law or custom, such as "merchantability" or "fitness for a particular purpose". Limited warranties are those that restrict the scope or duration of your liability, such as "one-year warranty on parts only". Full warranties are those that do not have any limitations or conditions, such as "free repair or replacement". You should choose the warranty type that best suits your product, customer expectations, and business goals.