Teacher Created Resources Small Sand Timers Combo, Pack of 8 (TCR20697)

Just what I needed

Had to time each one and put the amount on the end. Good enough for what i was using them for tho.

These are decent and they get the job done. I like the different time intervals, and they are clearly marked.They are however a bit cheaply constructed (some of the end caps are slightly askew). It can also be a little difficult to see the sand falling for the lighter colors. They work fine, I just wish they were a tiny bit better quality.

I use these in my classroom for students that don’t like timers with sound.

Although this is not an accurate timer, I’m deciding to give this a 5 star review because it is a good deal. With this timer, you have paid for a 5 minute timer but the manufacturer was nice enough to add 10 seconds. It is a 5 minute and 10 second timer. See the attached photos for when I timed the timer. I also had each timer compete against each other in a race. There was one that may have been a 5 minute and 15 second timer and that one finished last. I performed these tests on a completely level surface (see the picture of the level in the background) so there was no gradient error. I also controlled for different pressure systems by performing this test in my living room. there could not have been wind. Some may point out the the electronic timer I timed the timers on may not keep accurate time. The manufacturer of the electronic timer is Apple. They are a good company but there is no way to know which timer is accurate. I would recommend taking advantage of this deal.

My granddaughter loves them for timeout, no guessing

All of these timers are great. I bought them to use for Dungeons and Dragons, and the 5 minute timer tends to get stuck regularly. Maybe I got a defective one? The other three in the set work well. (as well as the 90 second timers I also bought). The low price coupled with the amount of space they take made this an instant purchase for me since I already have enough screens in my set up to operate. The colors also make it very easy to figure out which one is which at a glance.I highly recommend them, just be wary of the longer duration timers. I suspect the sand gets stuck due to how thin the tunnel is for them, as it's visually apparent when compared between the different durations. The failure of the 5 minute timer is not a deal breaker for me as I rarely use it.I tested them against a digital stopwatch as well. There's a fair amount of variance, but for what I'm doing it gets the job done. Can't be too picky about exactness of a 1-2 dollar hourglass though.

Although very toy-like, at around $1.24 each, these are good enough for their purpose. The glass timer is inside a plastic tube, attached to plastic stand ends. I wouldn't expect them to break if they hit the floor, but stepping or sitting on it likely would. The time is printed on both ends and having them colored is nice, especially with the 3-minute timer since you can barely read the white print on the yellow end caps.Like most sand timers, don't expect total accuracy, but they all come close enough to their stated times. I tested all four multiple times, and while the speed varies with any given use, they all finished within plus or minus 10 seconds.However, I've found the 1-minute timer sometimes gets bottle-necked and stops. I haven't noticed this with the 2 or 3-minute ones though (don't really use the 5-minute). I only use these when lifting weights to time my rest in between, so it's not that critical, but something to take into account if the timer isn't in constant view. Otherwise they're still worth it for the price and function.

not one was 30secs but close enough for dabs

Rien

Even though it’s just a 4 minute timer. I mainly purchased this set as the timers are pink! Works great!

They feel a bit flimsy, so don’t treat them too roughly but they’re good for what I need them for. None of them have broken yet and they all arrived in one piece so I’m hoping I’m wrong.

Works great to help the kids wash their hands long enough!