The Black Crest Office Chair by Studio Designs features a thick, contoured seat and backrest for added form-fitting support. The striking combination of tufted, black vinyl with a chrome base, make it the perfect modern seating option for your home office. The 5-star chrome base with dual wheel casters and 360-degree swivel allows you to easily access your entire workspace with ease. The pneumatic height adjustment lever allows you to easily set your seat to the desired height.  Overall Dimensions: 21" W x 22" D x 34.75" H  Adjustable Height: 18" 22.75" seat to floor  Thick Cushion with Durable Vinyl Cover  Contoured Seat and Back for Comfort  Pneumatic Gas Lift with Height Adjustment Handle  Chrome Five Star Base with 2" Covered Casters  Weight Limit: 250 lbs.