These Majestic Log Sets are designed to be used with the Courtyard gas fireplace. If you have a traditional heart kit with a stainless steel grate and wish to change the look of your fireplace, these logs are for you. Available in standard definition and high definition logs.Standard Definition log set is a 5-pc log set that has a realistic poplar bark look. High Definition log set includes 8 pieces of logs inspired by black locust bark. These are just log sets, the Traditional Hearth Kit with the stainless steel grate and lava rocks are purchased separately. Choose what looks best for you.