Description:In order to prevent scratching of the wood, the wood and other accessories are packaged separately, and the buyer needs to assemble it by himself.Specification:Material: WoodType:One Layer,2 Layers,3 LayersSize Choices: S,M.Season: Spring, Summer, Fall, Winter.Package Included:Planks and accessoriesSize Charts:SizeSM Board size 14*18inch 18*18inchPlease Note:1. Please allow 1-3cm error due tomanual measurement.2. Please understand that colors mayexist chromatic aberration. Thanks for understanding!