We recently purchased a pack of hot glue sticks from this brand and we are extremely satisfied with their performance .Based on our own experience these sticks are PERFECT for industrial and scientific use as they provide a strong hold for our projects. The yellow color makes it easy to see when applying, and the 0.27 inch thickness is just right. The only con we have noticed is that they can be a bit difficult to remove from the packaging, but it's a minor issue. Overall, we highly recommend these hot glue sticks!