With level term life insurance your premium remains the same each year for the entire life of your term policy.
So, for example, if you buy a 15 year level term life policy with an annual premium of $250, you would pay $250 each year for 15 years for your life insurance protection.
However, if you outlive the 15 year term, you may either renew your policy for another term, but the premium will increase based on your age, or your life insurance coverage will expire.
So, you have level premiums for the "term" of your level term life policy.
Here's how you can compare level term life insurance rates online from several of the leading life insurance companies.