4 Pack Pneumatic Caster Wheels 10 Inch, 2 Swivel & 2 Rigid, 661lbs Capacity, Heavy Duty Inflatable Wheels, Industrial Rubber Wheels for Cart Dolly Trolley$$Tools & Hardware Other

CNC technology precision manufacturing, advanced technology, higher precision. Made of TC4 titanium alloy material, with particular attention to material selection. Surface treatment: sandblasting + stonewash, Better texture. Features: siphon pen, pressure rod siphon principle, very cool.