... , 6:1,7:1 The characteristics of the slings:Webbing sling is produced from top quality synthetic fibre (100% PES),nylon ... rebound. According to customer's requirement, the safety factor of sling has 4:1,5:1,6:1,7:1,8 ... load capacity. Useful suggestions for the correct use of the sling:The slings should avoid the harm of the sharp instrument ...