4 Wheel P2750-EG Trolley Assembly Light Duty Electric Hoist Trolley Roller for use with 1-5/8" Wide or All 1-5/8" or Taller Strut Channel,Unistrut Accessories,Superstrut,2 Pack

these work perfect inside unistrut

Perfect for my needs! Running well with Unistrut rails. Fast shipment to Germany. Strong buy! ;-)

Exactly what I was looking for to make a sliding barn door. Very heavy duty and very nice quality. I can’t believe there are people reviewing this with claims about the “fit”. It fits perfectly in the section of uni strut I used it in, maybe it’s their uni strut that isn’t the right size, they detail the exact dimensions of this product in the product description.

Rollers fit perfectly and work without issue

Well made trolleys, not too heavy and work as expected. I use them with the uni-strut I have mounted on my shop ceiling for moving semi heavy items from one machine to the other. Saves my back, no need for a cart to push stuff around and they are pretty tough. I think for the money, this is a great upgrade to the shop.

They work great role, incredibly smooth and seem to be a great quality. However, they’re pretty sloppy in the channel. I wish they fit snugger.

These works very well with strut Model# R1000T10PG Item# 3846852 From Lowe's

as described

I received these fast. After receiving I found they wouldn't work for my application. They seem to be very well built and quality material.