360-Degree Rotatable Casters - Larger than most chair casters, the 75mm TTRacing XL Ultra Smooth Roller Blade Casters provide more stable support for your gaming chair. It also provides smoother rotatable movement so you can position your gaming chair easily. Universal Fit For TTRacing Chairs - Whichever chair you’re sitting on, the TTRacing XL Ultra Smooth Roller Blade Casters are guaranteed to fit any TTRacing model. Smooth And Quiet Barrier-Free Rolling - Made from smooth rubber, the TTRacing casters can easily glide across most flooring surfaces. With these casters fixed to your gaming chair, you won’t experience any sudden stops or unstable movement. Heavy-Duty Bearings - The bearings are made from heavy-duty material that can withstand most forms of damage while also supporting the casters’ smooth wheel movement and rotation. Superior Load-Bearing Capacity - Thanks to high-quality construction, the TTRacing XL Ultra-Smooth Casters are capable of supporting up to 300kg of load with amazing durability, making them the perfect casters to support most users.