Warning: Choking Hazard - Toy Contains Marble; Not for Children Under 3
Customer Reviews:
fun stuff 
I bought this for my nephew. It is kind of price-y for the amount of pieces you get, but boy is it neat. I had so much fun making things with the magnets, I thought I would like to get them myself. This is a solid product.
Just finished playing Magnetix for 2 hours 
My eight-year-old daughter and I have played with Magnetix for a couple of years now. She pulled them out again a two nights ago, and we made a some fun things.
Today was the big shopping day after Thanksgiving. I picked up a couple of 100-piece tubes of Magnetix parts on sale. We just got done playing with them for two hours. I must say, it was fun.
I understand the risk of ingesting the magnets. Our daughter is old enough that she can open child-proof bottles, so there are literally hundreds of items in this household which can harm her. I am not concerned about this toy. To be a fully-informed consumer, you should google “CPSC magnetix” and decide for yourself. I’ve decided to play. The product has been redesigned and is still for sale, as know if you are reading this on amazon.
Here’s a hint: the basic pieces (rods & balls) are the most fun. The squares and triangles aren’t really necessary, but the longer rods and flex rods are useful.
Have fun!
Not just choking hazard, destroys intestines and kills childrean 
The magnets are so powerful that they are destroying the intestines of children, resulting in a painful death. FINALLY, a recall is underway, thanks to KOMO TV in Seattle.
A CHILD JUST DIED FROM THIS TOY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
I have seen this toy in the stores and my just turned 4 yr. old has asked for it repeatedly, but with a 2 yr. old sibling, I knew it wasn’t safe to have around. But I cannot believe that this toy even exists! I do not care what the age requirement is, tiny magnetic ball bearings should not be considered a toy. So I child just died from this toy. I HOPE THEY TAKE IT OFF THE MARKET! Please push for this–do what you can so another child doesn’t lose his/her life!
March 20, 2006 - The idea of Magnetix is to build different shapes and designs with small plastic pieces - bound together by tiny, powerful magnets.
The box boasts “mega-magnetic power” and warns of a choking hazard to small children.
Penny Sweet’s 2-year-old son, Kenny, died Thanksgiving Day after swallowing tiny magnets from the toy - but he didn’t choke.
“The fact that he’s gone is just,” Sweet said. “It’s so difficult to sleep at night and wake up in the morning, and go through the day without him.”
An autopsy found two tiny magnets stuck in Kenny’s small intestine. Doctors say the magnets were so strong that they joined two ends of his small intestine, pinching it shut. As a result, bacteria were forced into his bloodstream - killing him.
The magnets are so strong they’re hard to pull apart - but they are supposed to be encased in plastic pieces. The little pieces are not supposed to be loose, and came out of the larger pieces.
Sweet said the toy was defective because the tiny magnets easily came loose.
Other parents are now reporting close calls with the same problem - including a 5-year-old hospitalized in Seattle.
The cases led to an extraordinary news conference from leading health officials warning parents about the toy.
Doctors Say Stay Away
“Don’t let small children play with the toys,” said Dr. Richard Harruff, a King County medical examiner. “And supervise any child playing with the toy.”
Dr. Daniel Leadbetter saved one boy’s life after performing emergency surgery and finding the magnets caught in an intestine.
“We found he had some holes in his intestine leaking out bacteria,” said Leadbetter of the Seattle Children’s Hospital.
In a statement to ABC News, the toy’s manufacturer points out that Magnetix has passed all federal safety requirements and that the box features prominent small part hazard warnings.
Horrible Product! 
This product is awful! So dangerous to have around your house! Although the manufacturer lists choking hazard, it does not list that swallowing the product could cause death! The magnets have a tendancy to come out of the rods with play and become only the size of peas, very easy to lose and get into the hands of a young child or pet. If the magnets are ingested in the body, they can connect together inside places such as the colon and cause a blockage that could kill an individual. This happened here in Seattle to a little boy. Do NOT purchase this product if you have young children or pets around at all.