This is the Highland Flared Stainless Steel Finger Spools Scuba Diving Finger Spool Features: Flared edges are easier to grip and keep fingers out of the way Large center hole fits gloved thumb 304 stainless steel with anodized surface #24 orange line, 8 strand, with breaking strength of 168 lbs (76 kg) 4 stainless steel doublender bolt snap with 18-8 SS internal springs The XS Scuba Flared 304 Stainless Steel Spools with anodized surface have flared edges which are easy to grip and keep fingers out of the way. Spools come with #24 orange line, 8 strand with a breaking strength of 168 lbs. (76 kg)."