... . thicken metal pipe. 3.pvc tablet. S15B modern mesh training chair with tablet DESCRIPTION:1. 2012 hot sale ... 40”HQ Materialbreathable mesh back.High Density FoamMolded Plywood Shell PVC writing tabletthicken metal pipe Featuresbreathable mesh back ,mesh with high sponge ... chair, boss chair, manager chair, fabric chair, visitor chair, mesh chair, secretary chair, staff chair, clerk chair, task chair, ...