... ,950lbs,1200lbs,1800lbs wireless remote electric winch hand Winch for heavy duty,Puller,600lbs,800lbs,950lbs,1200lbs,1800lbs SpecificationsHand Winch 1. material ... .Suitable for many lifting and lowering applications such as raising boats on davits or raising and lowering sailboat keels.Self-locking ... is releasPls contact with: Mrs Angela Wang hand winch, for heavy duty,Puller for marine ship