High-quality accessories, long caster life, wear-resistant load-bearing capacity, durable and sturdy. Ideal for DIY and industrial applications, households, schools, shops, and hospitals. Solid cast iron pulley, wear-resistant, non-fading, compact design, slides easily. Solid brass material, carefully polished and polished, sturdy and durable, three-hole screw installation, good handling characteristics. High-quality solid copper wheels, flexible steering, quiet, durable, can support overweight objects, save energy, and absorb vibrations on uneven ground. Material: Brass Total height: 5.5 cm Wheel diameter: 2.2 cm Disc diameter: 2.8 cm Screw length: 2.7 cm