Skull Hooks Brass S Hooks Lot of 2 Copper Alloy Skulls Hook Retro DIY Crafts These two sided brass skull s hooks are compact and solid. They measure 3 cm x 1 1/2 cm (1.18 x.59) inches. The opening in the hook is about 3.5 mm. See the pics for a relative size of these hooks. Listing of for two hooks. They ship free, new and sealed in a velvet jewelry pouch. See our other items for more skulls and dark themed metal.