Is the price for one castor only or a set of five?

I got five castors with rollers. A complete set. They're good

Which is the correct loading capacity? The top of this listing says 1760lbs, then the pictures say 650lbs...

I really couldn't say, but they are very well made,extremely sturdy, roll easily, and looks like they'll last a long time.

I will have a flat rug in my office - are these casters suitable to protect rug?

Yes its very suitable for rugs. I think it is a fine product!

Will these fit on a secret lab chair? i have the new titan evo 2022.

Secret lab or not, that will fit fine since the Titan Evo 2022 has the standard wheels fit :)

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Mastery Mart Office Chair Wheels Replacement 11x22mm, Rollerblade Style Office Chair Castors for Hardwood Floors, Ultra Heavy Duty, Quiet Smooth (Not for 1KEA Chair, Set of 5, Silver)

Mastery Mart Office Chair Wheels Replacement 11x22mm, Rollerblade Style Office Chair Castors for Hardwood Floors, Ultra Heavy Duty, Quiet Smooth (Not for 1KEA Chair, Set of 5, Silver)

Product ID: 208662661

Details

Brand
MASTERY MART
Colour
Silver
Item weight
1.2 Kilograms
Material
Thermoplastic
Unit count
5.0 count

🦾360° smooth, quiet glide on all floors

⚙️Universal 11x22mm shaft fits 99% chairs

🛡️Supports up to 295kg (650lbs) ultra heavy duty

B/.114

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛋️ Glide in Style, Work in Silence!

BUILT TO ENDURE - Engineered with steel and shock-absorbing TPU to support up to 650lbs—durability that means business.
QUIET CONFIDENCE - Enjoy whisper-quiet, 360° swivel action that keeps your workspace calm and your focus sharp.
FLOOR FRIENDLY GLIDE - Rolls silently and scratch-free on hardwood, tile, carpet, and more—ditch the chair mat for good.
EFFORTLESS 2 MINUTE SWAP - Tool-free installation gets you back to work or play faster—no downtime, just smooth moves.
UNIVERSAL FIT ZERO HASSLE - Fits nearly all office & gaming chairs with a 7/16" x 7/8" stem—upgrade without the guesswork.

Mastery Mart’s Rollerblade-style office chair wheels offer a universal 11x22mm stem size compatible with 99% of chairs (excluding 1KEA and Topstar). Crafted from durable steel and thermoplastic polyurethane, these ultra heavy-duty castors support up to 295kg (650lbs) while delivering smooth, quiet, and scratch-free movement across all floor types. The set of 5 installs tool-free in minutes, making it the perfect upgrade for professionals seeking seamless mobility and floor protection.

Specifications

ASIN	B06Y4BJ66G
Best Sellers Rank	35,965 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 10 in Casters
Brand	MASTERY MART
Caster Type	Stem
Colour	Silver
Country Of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (630)
Included Components	office chair wheels Set of 5
Item Dimensions	7.5 x 3.2 x 9.3 centimetres
Item Weight	1.2 Kilograms
Load Capacity	6.5E+2 Pounds
Manufacturer	Mastery Mart Inc.
Manufacturer Part Number	MF-PT002E
Material	Thermoplastic Polyurethane (TPU) and Steel
Model Number	MF-PT002E
Mounting Type	Stem Mount
Surface Recommendation	Multi-Surface
UPC	640852998379
Unit Count	5.0 count
Wheel Width	2 Inches

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