LFJ Single Swivel Pulley Block, 90mm Gym Pulley System with U Mounting Bracket, Roller Lifting Wheel for Wire Rope Cable Machine DIY Attachment (2PCS)

These were used for a zip line return mechanism, their large diameter and low resistance made them perfect for the task after connecting them together to make a pulley block.

Bought these to create a pulldown system on my squat rack. Nice large pulleys that are smooth and quiet. Have had for a few years now without complaint and still running nicely. I modified mine to bolt to the underside of my rack rather than use the eyelets supplied. Can recommend.

Works well and cheap

Use these daily

Worked very well as a washing line pulley very sturdy and smooth pull. Highly recommended

Good quality

Bought for my improvised home gym. Very smooth. Feels just like expensive gym equipment.

Good quality but the U brackets on the listing were not received

Seamos claros, baratas no son, pero si buscas unas poleas que giren bien, sean silenciosas y que lleguen rapidísimo, no creo que te defrauden. Las poleas en sí son de plástico, pero sus rodamientos y cubiertas son metálicos, muy resistentes, deslizan bastante bien. He probado poleas completamente metálicas y su ruido me parecía insoportable para un gimnasio casero. Éstas, en cambio, han sido una buena compra a pesar de un precio que en principio parece elevado.

Good quality, smooth, no perceptible drag. Decent price

Las poleas son resistentes y muy silenciosas perfectas para utilizar en un homegym por ejemplo

Use for Lat Pull setup. these work great. smooth operation and solid bracket.

These pulleys are quiet and rotates very smoothly due to the bearings. They seem to be good quality and large enough to accommodate most cable widths for strength training. One may need to stop the cable from sliding between the pulley and the pulley holder bracket. However, that can easily done by putting a strong tape or a worm-ring clamp.