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  • 2019-03-28 07:44:16

    I got this for my son for him to play and learn the principles of light reflection at the same time. It is well made and allows a very good viewing. I just wish it would be longer, or with the ability to stretch. But I new it's size when I bought it and can't complain about anything because it comes exactly as advertised. I recommend it.

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  • 2018-06-12 10:56:49

    It's OK

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  • Stra1
    UA
    2018-03-06 12:18:27

    Has come in a good condition. Inside is not a lens, inside the mirror. Works great!

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  • trakom
    TR
    2018-03-14 08:16:32

    ürün kargodan çok güzel çıktı

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  • mlehman
    US
    2018-06-01 21:36:04

    Neat little item. I bought 2 to try to construct a stereoperiscope. I would also like to try to extend the height of the scope, but not sure that's possible. However, the fact that this item breaks down easily makes it easy to imagine such creativity. This should be a great teaching tool!

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  • liort
    BG
    2019-05-28 06:00:11

    Not very well made, it's constantly disassembling, but it's good enough to show to your kids what is a periscope.

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  • Pike
    DE
    2019-02-01 08:53:24

    I'm a physics teacher. Very good product for use in the classroom. For the view of the smaller parts we have a camera. So perfect.

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  • 2019-08-31 02:41:09

    a toy

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  • Siade
    BR
    2019-04-06 09:58:04

    Minhas netas tomaram e não querem me devolver.

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  • 2019-03-15 18:36:37

    Good

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