I was deep cleaning my trimmer when naturally my dog came in all playful and I dropped and chipped the teeth of the blade. These trimmers are great and light but not too light. Durable (but not dog proof) this was the first time I even considered replacing the whole thing, and then did a quick google search for the blade and voila. The blade was an easy choice for the money. I attached the blade easily enough and it’s honestly quieter than when I first got them a couple years ago.