Features:Combines the benefits of exercise ball and rolling basePromotes active sitting while strengthening the back and improving postureDesigned to support your body weight like a regular office chairStructure with 4 easy-roll wheels, 2 are lockingMechanism: LeverLocking Adjustments: YesRatchet Back: YesHooded Casters: YesDouble Wheel Casters: YesCompatible Flooring: ConcreteRemovable ball: YesPersons 6' can use this chairProduct Type: Ball ChairBase Finish: BlackSeat Finish: BlackBacked: YesUpholstered Back: NoAdjustable Backrest: NoCasters Included: YesNumber of Casters: 4Removable Casters: NoFrame Material: PlasticSeat Material: PlasticPortable: YesSwivel: NoBase Type: LegsErgonomic: YesFootring Included: NoAdjustable Height: NoUpholstered: YesUpholstery Material: Polyester blendCushion or Upholstery Fill Material: Synthetic fiberWelt On Cushion: NoUpholstery Color: BlackLegal Documentation: Weight Capacity: 300Country of Origin: TaiwanNatural Variation Type: No Natural VariationPurposeful Distressing Type: No DistressingSupplier Intended and Approved Use: BothAnti-Microbial: NoCountry of Origin - Additional Details: Imported MaterialsDS Primary Product Style: Style AgnosticDS Secondary Product Style: UtilityBattery or Batteries Included: NoBattery Composition: Battery Type: Number of Batteries: Lithium Battery: NoNumber of Cells / Batteries: Weight of Cells / Battery: Battery Shipment: Watt Rating of Cells / Battery: Lithium Content: State of Charge (SOC): Accidental Activation Prevention: Complex Color - Existing Unfinished Values: NoComplex Color - Existing White Values: Complex Color Names: black;raisin black;jet;eerie blackContoured Back: NoTufted: NoBase Finish [NEW]: BlackSpefications:CALGreen Compliant: ADA Compliant: Remanufactured/Refurbished: ISO 9000 Certified: ISO 9001 Certified: ISO 14000 Certified: ISO 14001 Certified: General Certificate of Conformity (GCC): NoISTA 1A Certified: ISTA 3A or 6A Certified: UL Listed: ANSI/SOHO S6.5 Small Office/Home Office: BIFMA G1 Ergonomics Guideline for Furniture: Composite Wood Product (CWP): NoChemikalien-Verbotsverordnung, Section 3 Compliant: CARB Phase II Compliant (formaldehyde emissions): TSCA Title VI Compliant (formaldehyde emissions): CANFER Compliant: TAA Compliant: CAL TB 117-2013 Compliant: NoGSA Approved: HFES 100 Certified Ergonomic: Uniform Packaging and Labeling Regulations (UPLR) Compliant: NoLEED Project Appropriate: CPSC - 16 CFR 1303 Compliant: YesSCS Certified: Canada Product Restriction: NoReason for Restriction: GS (Geprfte Sicherheit) listed: BIFMA HCF 8.1 - Healthcare Furniture Design: CSA Certified: BHFTI Upholstered Furniture Flammability Compliant: ANSI/BIFMA M7.1 Standard Test Method for Determining VOC Emissions: Lacey Act Compliant: NFPA Compliant: ANSI/BIFMA X5.11 Large Occupant Office Seating: Energy Policy Act 1992 Compliant: ANSI/BIFMA X5.4 Lounge & Public Seating: CPSIA Compliant: ANSI/BIFMA X6.1 Educational Seating: Fire Rated: FIRA Certified: ANSI/BIFMA X5.1 Office Seating: FSC Certifications: FSC 100% Certified: FSC MIX Certified: FSC Recycled: FSC License Number: FSC Certificate Code: FSC Expiration Date: Verified Certified by FSC: SFI Certifications: SFI Certified Sourcing: SFI Chain-of-Custody Certified: SFI Fiber Sourcing Certified: SFI Licence of Certificate Number: SFI Manufacturer Link: PEFC Certified: PEFC Certification Number: PEFC Expiration Date: PEFC Manufacturer Link: Hazardous Material / Dangerous Goods: NoUN or ID number: Proper Shipping Name: Hazard Class(es): Packing Group: Packing Instructions: Special Provisions / Exemptions: Weight of hazardous material (old tag): Hazardous Material Weight: