TACKLE, LOBSTER, CRABBING CLAMMING SUPPLIES For over 50 years Danielson has been the industry leader in terminal tackle as well as lobster, crabbing and clamming supplies From swivels and floats, hooks and line, to lures, rigs, snells, tools and gear, Danielson provides anglers with the best quality products to enhance their fishing experience And now, Danielson includes a full line of Marine, Boating, Kayak and SUP products for your next boating and fishing adventure to ensure a quality experience Danielson 2500SPBLK10 Barrel Swivel wInterlock Snap Black Size 10 7pk.