Features UPDATED MATERIAL: rope hoist pulley system with stainless galvanized housing, nylon roller with forged lifting cable hook, rustless, more durable than plastic shell; Strong nylon rope pull ensures it will not break or be damaged in the harshest conditions. HEAVY LOAD CAPACITY: With a breaking strength of 4400lbs and a rigging system and 1100lbs load deck block, this heavy duty crane can lift heavy loads and weights; No need to worry about damage caused by excessive load. IMPROVED LIFT COMFORT: The block's 8:1 lifting power and lifting system minimize the amount of work required when lifting, allowing you to lift heavier things; And you can do all the work with pulleys and tackle without electricity or help. WIDE APPLICATION: The perfect lifting pulley system for athletes, disabled people or people with back problems, also can be used for other applications, such as hunting, boating, lifting, garages, pets, tree felling, DIY lofts, etc. HEAVY DUTY MATERIAL: The heavy-duty cable hoist pulley system is made of alloy steel material, with high strength, high tenacity, wear resistance, corrosion resistance, high and low temperature resistance. 1. UPDATED MATERIAL: rope hoist pulley system with stainless galvanized housing, nylon roller with forged lifting cable hook, rustless, more durable than plastic shell; Strong nylon rope pull ensures it won't break or be damaged in the harshest conditions 2. HEAVY LOAD CAPACITY: With a breaking strength of 4400 lbs and a rigging system and 1100 lbs load deck block, this heavy duty crane can lift heavy loads and weights; No need to worry about the damage caused by excessive load 3. IMPROVED LIFT COMFORT: The block's 8:1 lifting power and lifting system minimizes the amount of work required when lifting, allowing you to lift heavier things; And you'll be able to do all the work with hoists and without electricity or assistance 4. WIDE APPLICATION - Perfect lifting pulley system for athletes, disabled people or people with back problems, also can be used for other applications, such as hunting, boating, lifting, garages, pets, tree felling, DIY lofts, etc. 5. HEAVY DUTY MATERIAL: The heavy-duty cable hoist pulley system is made of alloy steel material, with high strength, high tenacity, wear resistance, corrosion resistance, high and low temperature resistance Specification: Item Type : Rope Lifting Pulley System Material: Alloy Steel Packing List: 1 x Rope Lifting Pulley System Package List 1 x Rope Hoist Pulley System