Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: my Yoshi blade has broken in half, aren't these blades graduated for life>
Document: I got a set of 2 with 2 peelers. after 2 months the tip chipped off one of them and I threw it away. I've used the other one for about a year and was cutting a small block of cheddar last night and the blade snapped in half. I was hardly using any down force. The peelers work great. They say you don't have to sharpen them but i notice a huge difference after a couple passes with a rod sharpener. Now I'm wondering how I can get this broken one replaced.
This knife is a waste of money. If you're looking for a good kitchen knife, go to a garage sale and buy some good old knives with wooden handles and dark metal blades. Learn how to sharpen them, keep them honed and you will be money ahead. Don't bother with this piece of junk. The vegetable peeler arrived broken, so it apparently couldn't handle shipping. Knowing this, I doubt the knife blade will last more than a month because it's the same material.
Really average knife but finally broke in half cutting an onion after about 4 months. Could have  broken sooner but I really didn't use it that often. Don't waste your money. If you want a really long lasting knife, spend the money to get a nice one. I learned the hard way, you get what you pay for here.
Got the knife home, used it to chop up some fruits and vegetables, and absolutely loved it. Then, the next morning, I took an onion out of my refrigerator, put it on my plastic cutting board, chopped it in half with the Yoshi blade, and the blade snapped clean off at the handle. A chip was also missing from the tip.
We've had our Yoshi blade for about a year and a half. It's the main knife I use for vegetables and fruits. It's not good for hard vegetables like apples potatoes, but great for tomatoes, lettuce, cukes, onions, peaches, canteloupe, etc. I also works well for bread. There are some chips in the ceramic blade, but it still works really great. I'm about to order another one I like it so much.
Yoshi Blade is Garbage. DO NOT BUY THIS KNIFE! This knife chipped along the blade twice but my wife continued to use it. The last straw came this morning, my wife dropped the knife on the kitchen floor, a vinyl floor, and the blade broke in half. I sent an email along with a picture of the knife to yoshi blade customer service but have not heard back. The only way we can protect ourselves is to bind together and quit buying products when the companies refuse to stand behind them.
LENGTH OF OWNERSHIP:  5 yearsSUMMARY:  Both the peeler and knife lack durability. However, the knife is practical for most food prep tasks and pleasant to use for a couple years.SEE PRODUCT PHOTO FOR 5 YEAR PICTUREYOSHI BLADEThe Yoshi Blade was the main kitchen knife for vegetable, fruit, and meat slicing. In my experience, the medium size blade makes it practical for 90% of food prep. The blade lost its initial razor sharpness after a half year of use. However, it was still usable.
As in the title we have had our yoshi blade for 3 years and we use just as recommended it cuts the tomatoes as advertised also along with other meats and vegetables too. We love it and are looking to add more to the one we have. Looking for different sizes of blades. Love the knife well worth the $20.
I had been given a set of Yoshi Blades a couple of years ago, and I used them very often. Finally, the largest blade became somewhat dulled, though not dull. And it had a small chip in the blade. I wanted another large blade. So I ordered the Yoshi Blade in question. I was disappointed.
I got a Yoshi blade over a year ago and loved it so much recently I got a second one for use at my daughters house. However, this blade is chipping and I don't know why. I am the only one that uses the blade and am amazed that the one I purchased from one place and the second one I purchased from a different place don't appear to be the same product.Both are Yoshi blades.
Answer: The knife isn't guaranteed for life, the blade is simply supposed to stay sharp for life. That said, if you take care of this knife, it will stay sharp and serve you well for years. A couple key points based on below comments: Ceramic knives are not meant to be used to cut through bone or other hard and frozen material. That's one sure way to break the blade. Ceramic knives are best for soft objects, especially vegetables and fruits (where you won't want to use a metal blade) and soft proteins without bones.