... HDF,Click system,7mm,8mm,10mm,12mm thickness, surface, overlay, floor board:1)Size:1215*196*7mm,1215*196*8.3mm ... ,oak, beech and so on.6)Click system: Single Click, Arc Click, Double Click (without glue).7)warranty time: 20 years8 ... ,thank you! Waitting for your reply! painted v-groove laminate floor