These are awesome propagation stations, or you can also use them as flower vases! Display with a plant start or use as an aroma diffuser, these are very versatile. A plastic test tube and cork are included. Height: ~4.5" Width: ~4.5" Test tube: 6"x.75" Each concrete planter is made out of a specially created (by me) proprietary concrete mix. They are hand poured in small batches, carefully sanded, cured, and sealed before the bottom of each pot is stamped and lined with protective bottoms. I apply 3-4 coats of sealant to each item in order to get a shiny 'finished' look, most people can't even tell it is concrete! :) Since each pot is handmade, the colors will all be unique and not exactly as pictured. Concrete tends to have a mind of its own when it is poured so the pots may have bubbles and color variations, I try to keep these to a minimum!