Based on my observations, these tension brackets are exactly what I needed for my latest DIY project! With 50 pieces in the assortment, I had plenty of options to choose from, and the galvanized finish gave me peace of mind that they would last. The tension is strong and reliable ensuring that my workpiece stays in place .The only downside is that they are only available in one size (30mm), so if you need something bigger or smaller, youll have to look elsewhere. Overall, I highly recommend these tension brackets for any workholding needs!