Rolling Swivel with Coastlock Snap – 6 size options Halco’s Rolling Swivel with Coastlock Snap is an ideal snap swivel for lures. The bullet shape of the coastlock snap decreases resistance, while the durable rolling swivel can withstand from 35 pounds up to 225 pounds and is ideal for bluewater luring and trolling. The snap provides ultimate protection, and the simplistic opening/fastening design allows rapid changeover in low light or when fishing off rocks.