K118 training chair with writing board Multipurpose The tube thickness:1.5 or 1.2 Foldable,sparying frame Writing board:MFC K118 training chair with writing boardMultipurpose:conference chair,leatureroom chair, task chair,training chair,waiting chair.It could be use in office,school,home...The tube thickness:1.5 or 1.2Foldable,sparying frameWriting board:MFCHigh density foamThe frame:sprayingThe ...