These heddle hooks from Schacht are available in 4 styles:
 
Cricket hook has a 3-1/2" blade length and a plastic handle—it's easier for kids to use.
Short hook has a 4-1/2" blade length and a wood handle—recommended for rigid heddle reeds.
Slim hook fits our 15-dent rigid heddle reed. Heddle hook handles come in assorted colors; your hook may differ from the photo.
Long hook has a 7-1/2" blade length and a wood handle—the long blade reaches shaft loom heddles easily, whether you're warping back to front or front to back.