Classic exposed wood frame with tightly fitted channel upholstered back over a wrapped all-metal swivel-tilt pedestal base with wide wood caps. 

Memory foam seating

Swivel tilt mechanism

Double "soft" wheel casters

Square Round extension HPL tabletop with solid wood edges and internal edge banding.  With 1-18" leaf.  Over a wrapped all-metal table base with wide wood caps

HPL top and bottom surface

Solid wood edges

Solid wood banding on leaf and half tops

Table locks 

Ball bearing table slides

Adjustable levelers on table base