Vari Active Seat Ergonomic Standing Desk Stool, Black $197.34 at Vari. via Amazon

Fully Assembled Standing Desk Stool: No assembly required! This active seating stool works well for standing desks, home offices, and workspaces. Stay energized and engaged while sitting, perching, or standing without missing a beat
Commercial-Grade Ergonomic Stool: Built tough with a durable polypropylene seat pan, wide cushioned seat, and industrial-strength air-lift piston. Supports up to 250 lb, making it suitable for home, office, classroom, or studio use
Dynamic Movement & Active Sitting: Rock, tilt, stretch, and lean with the fully articulating pedestal. Boost core strength, circulation, and posture while seated or standing. Helps reduce fatigue and improve focus during long workdays
Lightweight Adjustable Stool with Handle: Designed for easy movement! Built-in seat handle and lightweight construction allow you to quickly relocate the stool around your office, workspace, or classroom without hassle or heavy lifting
Height Adjustable with Space-Saving Design: Air-lift piston adjusts seat height from 23 inches to 32.5 inches for optimal positioning at standing desks or counters. Slim, compact design saves space while delivering full active seating benefits for any setup