Product review (4 stars): This Electrode is 31" total length. Ceramic head is ...
This Electrode is 31" total length.  Ceramic head is 3/16" diameter by 1-1/4" length. Fits my range at far side burners. Electrode 957 is 21" total length and reaches same-side burners. Clips (W10278150) required but not included (& overly expensive, IMO).