4PCS 800mm 4040 Aluminum Profile T-Slot Width 8mm European Standard Anodized Aluminum Profile Linear Rail for CNC Workbench and 3D Printer

Purchased to provide addition vertical support for a multi-monitor mount, which was extended to accommodate larger monitors, without the monitors overlapping.

Solid extruded aluminum rail, no issues

Needed a small amount of 80/20 in a 40 series. I do not have a local retailer to buy from in my area. This met my needs at a decent price compared to other larger brands. Shipping was relatively fast. Packaging was amazing good. Well protected from any possible bends or dents. They came in flawless. I will echo that these should be opened from the shipping box in an area that can be easily cleaned. There were numerous amounts of metal shavings that will fall out as you unpackage them. It's not a deal breaker by any means, but you don't want to open these on your living room carpet. Kinda like eating crackers in bed, ya know?Overall, I would purchase these again from this company if the need arose.

Not 600mm they are 23.6 inchs that is 599.4mm So if your thinking 2 will be 47 inches think again your going to be 1/2 inch off, Also thin walls and shavings! Dont open in your house especially on carpet,with pets or bare feet.

Haven't used the product yet. No idea how it will perform over time, but based on initial impressions, the quality looks very good.

I ordered like 12 pieces and most of them came with aluminum shavings. I had to unpack outside with a vacuum and brush. Aside from that, it's great.I will update if anything comes up down the road.

Packaged beautifully. Each piece is individually shrink wrapped, then the entire shipment was bubble wrapped. Unscratched, perfect. Highly recommend

The channels are not the standard depth so t-nuts with the tension ball are too shallow.Product description and details need to provide this information.