Chair Base Leg heavy-duty metal base, sliding feet, plastic accents, dark brown Condition: minor use marks, structurally sound. Measurements (approx.): slanted mounting plate height 12" to 13 3/4", 23" x 23" width, stem width 2 1/4" Mfg: Steelcase, USA C 1980’s Shipping: $49 within the continental US, partially dissembled. AK, HI, & international buyers, please contact prior to purchase. Original Steelcase Slanted Solid Metal Office Chair Base Leg