Hubless Heavy Duty Caster Wheels for Office Chair, Set of 5, 70mm Premium Replacement Casters, Quiet Smooth Roll, Hardwood Floor Safe Soft Polyurethane | Universal 7/16 Inch Stem Okina Mu - Black

UNIVERSAL FIT FOR PREMIUM TASK CHAIRS.
The 7/16 inch ( 11.1 mm) friction grip stem with a 1 inch sleeve length is the industry-standard mount utilized by most premium ergonomic task chairs, high-end mesh chairs, designer executive chairs, and contract-grade office seating.
Remove one of your current casters and verify the stem matches before purchase.
Tool-free installation in seconds.
No adapter, no hardware, no guesswork.
SAFE ON HARDWOOD, TILE, AND CARPET.
Non-marking medium-durometer polyurethane tires glide smoothly on hardwood, vinyl, tile, laminate, and low-pile carpet without scratching, gouging, or leaving marks.
A single tire compound manages every surface in your home or office, allowing you to transition from rug to wood flooring without changing wheels or purchasing floor protectors.
WHISPER-QUIET PRECISION ROLL.
Twin-wheel design combined with two sealed ABEC chrome steel precision ball bearings per caster provides the quiet, glassy-smooth roll a premium chair merits.
No noise on hardwood.
No sticking.
No flat spots after sitting overnight.
The original plastic casters included with your chair do not achieve this.
HEAVY DUTY 200LB LOAD RATING, BIFMA CERTIFIED.
Each caster is rated for 200 lbs static load, 2.2 times the capacity of standard furniture casters.
Independently certified to ANSI/BIFMA X 5.1 -2011 for commercial use.
Glass-strengthened acetal frame and hubless construction (no axle, no debris trap) withstand daily wear in actual offices, not merely light home use.
MODERN DESIGNER AESTHETIC.
Hubless Japanese-influenced silhouette enhances the appearance of any premium chair immediately upon installation.
Standard black frame with your selection of black, gray, white, or red accent ring.
Patented dual-wheel construction not found on inexpensive five-dollar replacements.
The final touch your chair lacked