The castors themselves are very durable and exactly what i wanted. The sturdiness and smooth flow as they swivel is impressive. Tuve que comprar otros tornillos with sus tuercas.

These wheels are great at a good price. They roll very smoothly. Wheel lock is easy to use and works great. Wheels are super slick. Comes with bolts.

The replacement order were damaged and clearly previously used. The picture and description indicate that the wheel itself is a 4 inch diameter but what i received has a 3 inch diameter wheel.

They roll effortlessly and very easy to install. Aligning the mounting holes to use a single bolt (versus a screw on each side) takes a steady drill hand. Fit wood crib as replacement for old. Worked very well.