Burning hooks and screw eyes

Hello:

They have something called ‘burning hooks’ (item 21, ‘burning hooks
and screw eyes’). Does anyone know what that is or how it’s used?

Lucille Dan

They have something called 'burning hooks' (item 21, 'burning
hooks and screw eyes'). Does anyone know what that is or how it's
used? 

perhaps if you told us who “they” are, and where you saw this
listing showing something as item 21, we might better be of help…