Eisco Pulley on Metal Clamp, Force Table Use, Hand-Tightened, 25mm Mouth

My son used this for a high school project. It is compact and solid built.

I used it for a science lab. The only challenge I found is that it does not clamp onto the thick chemical resistant counter tops (the clamp opening is not wide enough) so I used portable tables or desks with thinner counter tops.

Excellent quality, very sturdy and stable, excellent overall design. Using this for my kid's science faire project, working perfectly.

I ordered several Elsco Labs products at the same time. Each one is the quality you would expect in classroom lab products that need to last several years. This clamp is solid metal, rigid,. Good pulley bushing. Ordered with double tandem pulley, spring set and spring scale for experiments with Hooke's law and mechanical advantage.

This is a well-made bench pulley. The clamp action is smooth, as is the pulley. It's useful for small projects with relatively light weights.