These casters are perfect for use in industrial and scientific settings. They are made with high-quality thermoplastic materials that ensure durability and long-lasting performance. The smooth and quiet rolling action makes them easy to use for transporting heavy loads without creating any distractions. However, the pricing is slightly higher compared to other casters on the market. Overall, the Schioppa GLEIF 412 TBE Thermoplastic casters are an excellent investment for anyone looking for quality and reliability in material handling products..