Blue Hard Slide Case-Cover (See Description for Details) for Older TI 84 Plus, TI 84 Plus C Silver Edition Color, TI 89 Titanium Graphing

First off, I use the TI-84 Plus Silver Edition.My initial impressions of this cover is that its a neat and possibly useful accessory for my calculator. Its numerous equations for the different types of graphs is certainly useful if you need a quick reference. The cut out at the top for a quick and easy graph making looks pretty useful as well and the two types of rulers will certainly come in handy. My gripe about the cover is that it is very much a standalone cover when you are actually using the calculator, because the rulers will get in the way off holding the calculator. In addition, the rulers itself adds bulk to calculator itself making it somewhat harder to grasp or hold. However, I do recognize that it is really the only place to put a ruler on the body. The material used for the cover is not like the glossy slippery original ones either. It's more matte and rough. A huge thing about the back cover is that it does not include rubber feet and any grippy materials leaving the calculator to slide around. If one was the use the calculator without the cover attached, then it would be fine but I do. A minor thing is that I don't really like how apparent the logo sticks out on the back. The TI logo is pretty small unlike EZ graphing.Overall, I'm not sure if it will beat my trusty ruler but I'm willing to use it in its place. It is definitely a solid product and if you are in need of an all in one package, then this would not be a bad purchase.

The color on these is neat, but this seems like a downgrade from the original TI slide-case in almost every other respect.The case doesn't have rubber grip-feet on the back, so if you put the case on back of your calculator, the calculator will slide around on your desk during use.The act of putting on and taking off the case also has a noticeably worse feel than the original.Additionally, the rulers on the side and top of the case decrease the calculator's ergonomics very significantly, making it difficult/awkward/uncomfortable to pick up from most angles.Finally, I subjectively dislike the texture of this case compared to the TI original. It feels rather rough in comparison to the TI's typical smooth, glossy feel.I would highly recommend instead buying a TI-brand replacement slidecase directly from TI for a lower price.

This is a sturdy case that fits my TI-84 Plus perfectly. The rulers/straight edges on the sides and top are very handy and the X-Y coordinate guide makes framing up your simple graphs a snap.My only qualms with the case are:1. There are no feet on the back to keep your calculator rooted to the table, a small bump can send your calculator to the hard floor if you have case on while the calculator is in use.2. The ruler edges do make the case slightly more bulky than it would be otherwise.3. The ruler costs nearly $20. Although it is a well engineered piece of plastic that fits my calculator well, it is still only a single piece of plastic.

Now in grad school and so happy I found this but I wish the creator would have made it 10 years ago! I can throw a great graph into any problem or draw the physical systems with ease.

I absolutely love my new EZ Graphing slide case cover. The cover fits on my calculator perfectly and has a lot of cool features. The x/y coordinate on the center of the cover is especially awesome as it helps me both speed up and achieve a better layout for my graphing problems. The centimeter ruler on the side is also great for drawing a variety of geometric shapes. I love that I don't have to remember to bring an extra ruler in my backpack anymore. This cover rocks! Also, I love the look and color of the cover. I use my calculator every day and it is so much more cheerful to see and use my calculator with it's cute pink cover. Overall, very glad that I bought it.

Great!

Fits great, son likes this over the stock cover. The green sets his calculator apart so it does not get mixed up in a crowd.

Innovative product! I love the vibrant blue color. Great fit! The "Made in the USA" Quality is evident throughout! I have used the template and straight-edge as a trial, and I must say, I am impressed. It is very easy to use. I will show it off at my college and illicit reaction. I am sure that the response will be positive...and envious. I am very satisfied with this EZ Graphing Slide Case. Packaging was superb and shipment was fast through Amazon. I highly recommend this item for those taking classes requiring the precision, accuracy, and or neatness when graphing!