Treble & Single Hooks

How do I determine what size/style single hooks to replace these treble hooks? That is possible right? How would I even get these off and new ones on? : r/FishingForBeginners

HOOKS – River2sea Brands

PARTRIDGE SALAR TUBE Fly Single & Treble Hooks Size 7, 9, 11 by Mikael Frodin £15.50 - PicClick UK

Gibbs Halibut Rig - 6/0 Treble & 9/0 Single Hooks - The Harbour Chandler

10KCo Facebook

ARMOUR PRAWN – River2sea Brands

Storm Chug Bugs

TREBLE & SINGLE HOOKS – River2sea Brands

Fishing Hooks for Sale Online Buy Fishing Hooks Australia - Page 10

JIG HEADS/WORM HOOKS – River2sea Brands

How to Replace Treble Hooks with Single Hooks the Right Way - Florida Sportsman