STAIN-RESISTANT & EASY-TO-CLEAN - Our FRS Series Stools are made with Te Flon Fabric Protection Technology. This allows the material to be easily wiped clean from basic stains and marks. It is soft to the touch, smooth and skin friendly yet durable and resilient. It is resistant to ballpoint pens, oil-based markers, and permanent markers acheiving a grade 5 level in CFFA-141 Tests (Stain Resistance Testing) COMFORT AND EASE OF USE - Large and Comfortable 17" round seat with an "All-Around" 360 degree adjustment lever makes the FRS stool easy to use and comfortable for long periods of use. Chiropractor Endorsed seating allows your to move freely while maintaining a natural healthy posture. No more wasting time to search for the seat height adjustment, you can access the pneumatic seat height adjustment lever from any angle. The FRS stool line offers multiple models for a wide range of seat height options for different tasks, stations and work environments. SAFETY - Each one of our FRS stools meet or exceed ANSI/BIFMA and DIN-Standards. Each of the components and materials were carefully chosen to effectively meet Cleanroom Class 10,000 standards. HEAVY DUTY & COMFORTABLE - A Large 26" diameter high strength nylon base provides the stability and strength to withstand years worth of hard daily use combined with a Class 4 Heavy Duty pneumatic cylinder gives our FRS stools an industry leading warranty and weight capacity WARRANTY - 10 Years. WEIGHT CAPACITY - 450 lbs. The CHAIR MASTER FRS-R stool series was designed and assembled here in the USA specifically for the Healthcare, Laboratory, and Industrial environments with durable stain resistant technology. When the office, practice, exam rooms, or workshops need a comfortable and durable seat that can easily cleaned, the FRS line of seating is the right chair for the job.