Single or double barrel sleeves. Which is better and why?

AFW Single Barrel Sleeves 36 Pack Nickel #0

What You Get - 400pcs single crimp sleeves you will get.Inside diameter 01.0mm-100pc,1.4mm-100pc,1.6mm-100pc,1.8mm-50pc,2.0mm-50pc with tackle box.

Wire Rope Fishing Crimp Sleeves Kit,Single and Double Barrel Brass Copper Crimping Sleeves Tubes Fishing Line Tube Connector Assortment Kit Box for

L C Smith Ideal Grade FWT 12 gauge 28 Barrels

250pcs 5 Sizes Single Barrel Crimp Sleeves Copper Connector Kit

Wokape 140Pcs 2 Styles 7 Sizes Aluminum Single Barrel Oval Crimp

Wholesale AHANDMAKER 200 Pcs Aluminum Crimping Loop Sleeve

Double Barrel Crimping Sleeves - Premium Rigging at an Affordable Price - The Pitbull Tackle Double Barrel Sleeves are designed to compliment Pitbull

Double Barrel Sleeves

550 pc CU MiniDBLBarrelSleeves, 400 pc AL SingleSleeves, 100 pc

American Fishing Wire Single Barrel Leader Sleeves

1000pcs Fishing Double Barrel Crimping Sleeves Copper Fishing Tube

100PCS Copper Double Barrel Crimp Sleeves for Monofilament Fishing Leader Line (0.8mm-2.0mm ID) Wire Rig Terminal Tackle - AliExpress

100pcs/lot Barrel Crimping Sleeves copper double tube sea fishing wire sleeve fishing line tube inside Diameter 1.4mm-2.2mm

AFW Double Barrel Leader Sleeves – White Water Outfitters

100Pcs Fishing Wire Tube Brass Fishing Single Double Barrel Crimping Sleeves Tackle Connector High Strength Fishing Accessories - Price history & Review, AliExpress Seller - Climbs Store