Check the listing for details. Rocaris 4 Pack M50 Lifting Single Pulley Roller Loading 880Ibs, 304 Stainless.... Condition: New. Listed at 42.11 USD. Rocaris 4 Pack M50 Lifting Single Pulley Roller Loading 880Ibs, 304 Stainless Steel Heavy Duty Single Wheel Swivel Lifting Rope Pulley Block Free 60 Day Returns Free Express Shipping Description: Features: TOP QUALITY: The whole is made of high-quality stainless steel material, which is higher in hardness than ordinary materials. The material has the characteristics of moisture resistance, acid and corrosion resistance, and rust resistance. Rugged construction and shock-resistant design make it extremely rugged.EASY TO USE: This 50mm Single Pulley Block is ergonomically designed. 360 degree rotation to prevent knotting of the rope and easy to use. The flexible pulley has heavy load capacity and is suitable for a variety of applications, with a load of 880lbs.SUITABLE FOR: This M50 silver crane swivel hook designed for indoor and outdoor rope or rope applications, the flexible pulley with heavy duty capacity is suitable for a wide range of applications.SURFACE TREATMENT: It is made of stainless steel, the surface is bright and shiny, it will not release toxic substances, it is environmentally friendly, non-toxic and harmless.EXQUISITE TREATMENT: Package includes 4 pack single pulley roller.It's super sturdy and wear-resistant, solid design, super load-bearing, flexible rotation. The production is very well-made, the pulley cylinder is strong and durable. Product Details: Package Dimensions : 7.13 x 6.26 x 1.34 inches; 2.93 PoundsDate First Available : August 26, 2019Manufacturer : RocarisBest Sellers Rank: #10,277 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #6 in Snatch Rigging Blocks#6 in Snatch Rigging BlocksCustomer Reviews: 4.5 4.5 out of 5 stars 990 ratings