Keep employees productive with the Boss Drafting Stool B1615-BK with 20 chrome foot ring. The pneumatic gas lift seat-height adjustment lets users alter the height of the stool from 26. 5 to 31. 5 . The ergonomically contoured seat, which is 17. 5 W x 16. 5 D, and back are upholstered in tweed fabric to withstand daily use, and the black 27 nylon base in a five-star format adds stability to the stool. Move the stool easily on hooded double-wheel casters. Weight capacity is 275 pounds and the overall size is 17. 5 W x 25 D x 44. 5 to 49. 5 H. [Ergonomic] Ergonomic design emulates the natural shape of the spine to increase comfort and productivity. The gas lift allows the user to modify their height in relation to their work surface, leading to an increase in comfort and ergonomic benefit [Adjustable Height] Adjustable seat height with a 4 vertical height range; Seat dimensions: 17.5 W x 16.5 D x 25.5-30.5 H, Max product height: 47.5” [Stable Base & 360° Swivel] Dual wheel casters and 5-star nylon base allow for easy movement; Attractive chrome finished 20” foot ring; 275-lb. weight capacity [Quality Materials] Upholstered in durable tweed for easy maintenance and comfort [Assembly & Dimensions] Ships ready to assemble; Installation manual provided below; Product dimensions: 25.5 W x 25 D x 42-47.5 H UPC 751118161519 783761466857 Size Mid-Back Color Black Shape Rectangular Theme unspecified Pattern Solid Tilting No Arm Style Armless Leg Style 5-star Room Type Office Back Style Open Back Brand Name Boss Office Products Item Depth 25″ Item Width 25.5 Inches Model Name Ergonomic Works Seat Depth 18.5 inches Style Name No Arms Unit Count 1.0 Count Is Foldable No Item Weight 27 Pounds Seat Height 30.5 Inches Finish Types Nylon Manufacturer Boss Model Number B1615-BK Fill Material Foam Material Type Chrome, Fabric, Nylon Seat Material Tweed Fabric Item Type Name Drafting Chair Is Customizable No Item Dimensions 25 x 25 x 49.5 inches Furniture Finish Chrome Required Assembly Yes Additional Features Ergonomic, Swivel Frame Material Type Nylon Included Components Chair Chair Backrest Width 17.25 Inches Indoor Outdoor Usage Indoor Age Range Description Adult Surface Recommendation Indoor Furniture Base Movement Glide Reclining Position Count 1 Item Dimensions D x W x H 25 D x 25 W x 49.5 H Product Care Instructions Wipe Clean Recommended Uses For Product Drafting Maximum Weight Recommendation 275 Pounds Manufacturer Warranty Description Manufacturer. Global Trade Identification Number 00751118161519