Features:Premium Material: Made of plastic material, It is sturdy and durable.Slots that Guides Root Growth -- When orchids become too big for a solid pot,roots begin to circle and choke each other,but slots can guide the root to grow vertically downwards out of the vents at the sides and bottom,prevent rotting and circling,prunes root structure,promote root growth.Good Air Flow and Excellent Drainage -- The Patent Vents at the sides allow for good air flow;the vents in the bottom allow for excellent drainage.Great for decorating desks, tables, window sills, gardening, living rooms, etc.Minimalist style,perfect for potted plants, Orchid,etc.Notice:Actual color may be slightly different from the image due to different monitor and light effectPlease allow 1-3cm deviation due to manual measurement The size of S without air columnSpecification:Material:PlasticSize:S:Inner Diameter:10cmOuter Diameter:12.5cmBottom Diameter:7cmHeight:11.1cmM:Inner Diameter:12cmOuter Diameter:14.3cmBottom Diameter:7.8cmHeight:12.4cmL:Inner Diameter:15cmOuter Diameter:18cmBottom Diameter:9.8cmHeight:15.5cmincludes:1x Flower Pot