American stainless steel Duolock Snaps on a choice of swivels

Size for size, stronger and more secure than hooked snaps
Strong, secure snap swivels for 50 to 100lb flying lines

Rolling swivel with duolock snap
150lb-test Duolock snap on Sakuma* size 1/0 rolling swivel
(Sakuma UK rates this swivel's BS as 175lb)

Length: 2 3/8" (6cm)
Weight: 2¼ grams

Berkley-McMahon swivel with duolock snap
150lb-test Duolock snap on
150lb Berkley-McMahon crane swivel

Length: 2 3/8" (6cm)
Weight: 2.1 grams

* "These Sakuma swivels are some of the best quality we've seen for some time and are very strong, smooth and reliable." -blakdog