Our geometric vessels are designed for plants such as succulents or cacti, a holder for air plants or for candles. Interior is sealed with a plant and candle safe, eco-friendly sealer. Small rocks or gravel may be added to the bottom for proper drainage, or you may select the option to add a drainage hole if you prefer. These planters are ideal for a 2" size plant. Vessels may also be used for candles, but please be aware that only the inside is sealed with a candle safe sealant, and any wax dripped on the outside during pouring may result in a stain. Approximate dimensions: Round Geometric Vessel: 2.75" Tall, 3.75" Wide, Inside diameter 2" Straight Sided Geometric Vessel: 2.5" Tall, 2.75" Wide, Inside diameter 2" Finish may vary slightly or include natural variations (small air bubbles, surface texture variations, etc.) due to the nature of the concrete. We feel this adds to the character and uniqueness of each piece.