Each small employer carrier shall make reasonable disclosure in solicitation and sales materials provided to small employers of the following: (1) The extent to which premium rates for a specific small employer are established or adjusted due to the claim experience, health status or duration of coverage of the employees or dependents of the small employer; (2) The provisions concerning the carrier's right to change premium rates and the factors, including case characteristics, which affect changes in premium rates; (3) A description of the class of business in which the small employer is or will be included, including the applicable grouping of plans; and (4) The provisions relating to renewability of coverage.