Heavy duty – double lock Used for stag and medium to high station size fowl Leg weights other than known as leg balancers is a paraphilia use in training of your game fowl Use the double lock snap button to be secure and wrap around to the leg Use during the pre-keep to get the birds acquainted to having something on their leg and the same weight as the knife.for putting on some bulk and size , do not use them longer than 2 weeksLeg weights and leg stretching combines them a lot is a must, resulting to gives more power on the chicken’s leg.