Industrial and scientific tasks require quality equipment that can withstand heavy duty processes. Through trial and error I found that these lightweight yellow plastic buckets are a cost-effective solution. They're not only durable, but incredibly lightweight which makes them ideal for carrying and storing materials.The only con is that they come in one standard size, which may not suit all needs. Nonetheless, for an affordable price, these buckets definitely hold up to their promise of being long-lasting and practical..