UnistrutGenuine P2750-EG 4 Wheel Light Duty Trolley Assembly for use with P1000, P1001, P5000, P5001, P5500, P5501 and All 1-5/8" or Taller Strut Channel

I thought they were a bit expensive but have not done a comparison with any others. I am impressed with the smoothness and how sturdy they are. I am using it to pull a mesh tarp as a sun shield over my motor home, about six inches off the roof, by fastening the Unitrack to the roof. I have not yet installed the track but expect it to work perfectly. A flange from Lowe's bolted on the trolley perfectly with 1/4" bolts. I was having trouble deciding between this trolley and the heavier duty one but this one allows fasteners at the bottom of the Unitrack and this one has room for fasteners. I'm guessing this trolley is way more sturdy than my intended purpose but I'm the kind that appreciates overbuilt, sturdy things. I can sure see me using these for some other purposes like a rolling handicap rail to help my wife get to the bathroom without falling, maybe using a bicycle brake to keep it from moving when needed. I probably will use this when I put another battery tray under the motor home, too.

Parfait pour les rails de 1 pouce 5/8 disponible chez dans les quincailleries. J'ai maintenant un monte charge dans mon garage.

Unit is sturdily constructed and works well for my needs. Seems to be very durable and a quality product.

I used these as hanging rollers for a 3' plank door, because I never want to have any problems ever. Used with UniStrut track. Life time quality!

Need little beefier