This M50 pulley block is seriously heavy-duty for all your lifting and rigging needs! Made from 304 stainless steel, it resists rust and corrosion while handling up to 400kg max load. The wheel diameter is 50mm with a 13.5mm groove width that works perfectly with various rope sizes. The swivel hook rotates 360 degrees to prevent rope twisting and knotting during use. The total height is 127mm with a 20mm eye diameter for secure attachment points. Perfect for construction, camping, sailing, or any situation where you need to move heavy items with reduced effort. The smooth sliding action makes lifting much easier by reducing friction on your ropes. The quality manufacturing ensures reliable performance even under heavy use. Great for DIY projects, outdoor activities, or professional applications where durable lifting equipment is needed. Seriously, if you need a sturdy, reliable pulley that can handle significant weight while being corrosion-resistant, this M50 stainless steel pulley delivers professional-grade performance for various lifting tasks!