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  • Pack of 10 Watch It Grow BRAIN- Collectible Magic Growing Thing
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Pack of 10 Watch It Grow BRAIN- Collectible Magic Growing Thing


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  • Caution: choking hazard
  • For ages 5+
  • Quantity of 10 watch it grow brains.
1 new from $19.99

Product Description

All you need is water! Grows to 600% of the original mini Size!! Grow your own Grey Matter! The fun never ends... You can Grow it again and again! Simply place the toy in water and watch it grow over the next few days. To shrink your toy simply remove it from the water and allow it to dry. Ages 5 and up. Makes a great Gag Gift! Growing animals and other things (brains, princes, etc) that are made to increase in size in water are made up of two polymers. One is poly(vinyl acetate) which keeps the original proportions and shape of the item or creature and the other polymer is polyacrylamide which is the super absorbent polymer. The growing creatures have many teaching applications in science and math, including graphing, drawing conclusions, and measurement using linear, mass and volume. This is a pack of 10 watch it grow brains.

Product Details

  • Shipping Weight: 0.8 ounces
  • ASIN: B003VKTH8W
  • Manufacturer recommended age: 5 years and up
  • Amazon Best Sellers Rank: #367,092 in Toys & Games (See Top 100 in Toys & Games)
  • Average Customer Review: 2.8 out of 5 stars  See all reviews (8 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

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Customer Reviews

2.8 out of 5 stars
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Most Helpful Customer Reviews

2 of 2 people found the following review helpful By Woogies2 on September 6, 2014
Verified Purchase
Huge disappointment!!! I intended on using these to teach a science lesson I have done in the past, and like the other reviewers said, the item pictured is not what you get. I have use the ones pictured and they are great. These are terrible and maybe worth a dollar for the whole pack at most. Lame.
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2 of 2 people found the following review helpful By Samantha Williams on October 28, 2013
Verified Purchase
Instead I received little brain discs which just turns into bigger discs. Not very 3D. Not the product that is pictured. Disappointing indeed.
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1 of 1 people found the following review helpful By Lisa puckey on March 6, 2013
Verified Purchase
I was excited to find these toys to fill a visual gap I needed in a party with a labratory theme. Unfortunately, the items I received were not the ones pictures and were much smaller and flat. They did grow as promised but the effect was very disappointing and I couldn't use them.
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1 of 1 people found the following review helpful By brian on October 7, 2013
Verified Purchase
The item that was sent to me is not what is pictured. Huge disappointment. It's not the same product or even close. The product I recieved was tiny and will only grow up to the size of a small rubber ball, not 600 times like in the picture. Don't buy.
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