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

Input:
Question: How big are the jars?
Document: Very pretty and modern.The holes are the same size for all the shakers. They're too small for some spices (the leafy green ones) or too big for salt and pepper, but I guess you can just be cautious when using them.
I really bought this because I wanted the little rack to fit in a tiny spot in my camper. I didn't keep the jars. The little rack is perfect for my needs.
was looking for a set of jars for my "bulk" spices... didn't read closely enough... these are regular size spice jars.Given that, they're nice, nice holder that can be m ounted to hand on shelf or wall, but nothing special.
Using this in my camper to hold all my spices. I bought two. The plastic part must be in place to hold the lid on. The glass jars have a little space between the rack so I put some weather foam strips to hold them tight in the space.
I was looking for a small spice rack to hang above my sink and this one was perfact. Although, I wish that the shacker part of the jars were made a little different. You cant use the jars without the plastic shacker tops. But I used a glue gun and glued them to the lids and that seemed work out well.
It hasn't smudged or rubbed off at all, but if we need to erase later, it's nothing a little rubbing alcohol won't take off.I absolutely recommend this rack for anyone who wants to save space in the kitchen and wants a nice, clean look, but if you want bigger pouring holes, get a rack (without jars included) that will hold the original grocery store jars.
Let it also be known that the plastic lids MUST be in place for the metal lids to be able to fit securely (can't leave them off), so you WILL have to remove the plastic each time you want to use the larger spices like a cinnamon stick or cloves.Also, we chose not to get the matching labels since we wanted the jars to have a very clean look (and because we pretty much know which spices are which).
I bought 2 of these to use the jars for a pottery barn daily system spice rack. I am using the jars for household items as opposed to spices (ie, rubber bands, thumb tacks, paperclips, staples, etc.) They look great but the metal lids seem to want to "pop" halfway off of the plastic inner lids. If you want to store spices and keep them fresh, this would be a problem.
It can be attached to your 'fridge with 10 Neodymium Magnets, 3/4" by 1/16" (ordered from Magnetman via Amazon). Put 5 magnets on the back, then a short length of thin rubber material for friction, then 5 more magnets. The rack will stay put on your 'fridge even when holding 6 glass jars full of spices. Awesome!I also ordered spice jar labels (from Corydor via Amazon).
I've been looking at spice racks for sometime now. This product is stainless, glass, and 4oz. jars. It fits perfectly where I needed it and is the right size for filling with store bought spices. It arrived a little warped in the front and I had to bend it out w/pliers in order to fit the jars in. Hence the 4 star rating instead of 5. But it looks great now, and it was relatively inexpensive. I plan on purchasing another set to go above this one.
Answer: 4 inches tall, 1 and 3/4 inches each side.  The more important issue for a spice jar for me is the size of the opening at the top.  I can not get a standard 1 tsp. measuring spoon in.  I have to use 1/2 tsp. or less.