Bought 2 packs of replacement heads to find on opening first packet they...

Bought 2 packs of replacement heads to find on opening first packet they don’t fit! Turns out there are different shaped base fittings and the description doesn’t tell you that. Seems I needed to find classic heads fit my 2 spotlight toothbrushes and guess what no one apart from spotlight seems to still have those listed. A very expensive ordering mistake I didn’t know I was making! Be aware not all spotlight heads fit your toothbrush if it’s older! Back to the drawing board!