Egg snap employs super strong stainless wire, and it will not open un-intendedly. The egg shaped wide snap allows your bait to move freely, and leads the best action from the bait.
Its interlocking desing holds the rig the strongest. Please use pliers to open the snap, because the wires are too strong for fingers to open.

Breaking strength, #1 30lb, #1.5 38lb, #2 60lb, #3 70lb, #4 100lb, #5 120lb