【with 2 LIFT SLING AND 1 SHACKLE】 1"×8ft 4000 LBS breaking strength lifting sling with flat eye to eye loop ends to provide more durability when attaching to shackles or over hooks. 3/8" 304 stainless steel shackle higher hardness, and strong enough to bear a heavy load.Apply to household applications, loading, hoisting, pulling. 【DURABLE MATERIAL】：The rope puller is made of polypropylene to ensure no fraying, breaking, and won’t fade; While the rust-proof zinc-plated housing with metal bearing alloy steels hooks to resist rusting and wear and tear. 【HEAVY LOAD CAPACITY】:This block and tackle pulley system is made of durable pulley and strong rope with 1100 lbs Loading Capacity for sturdy and smooth operation; You can lift both heavy and light stuff with this heavy-duty pulley. 【IMPROVES LIFTING CONVENIENCE】:8:1 ratio lifting power can do all the work without electricity or help; Minimize the work you have to put in when lifting, allowing you to lift heavier stuff. 【SAFETY】:The pulley system passed 1.25 times the rated load tensile test and 2T rated load tensile test; If you have any questions please contact our customer satisfaction team. When we carry or lift heavy objects, we always worry that we cannot do it independently. After a lot of research and material selection, we launched this FOUR-WHEELS PULLEY BLOCK AND TACKLE SYSTEM with 8:1 lifting power 4400lbs breaking capacity, 2 LIFT SLING,1 SHACKLE to ensure more comfortable to work.