FM FM42Temperature Sensing Color Changing Pendant Necklace with 19.29" Stainless Steel Rolo Chain

Really cool pendant. Love how it changes color based on the temperature. Wish it was a little larger. Love it nonetheless.

Reminds me of ones I had as a child! My daughter loved this necklace. Durable and perfect size!

My daughter wanted to get her best friend a necklace before she and her family move away. We picked out the two piece "best friends" heart necklace. I was pleasantly surprised that it not only came nicely wrapped in plastic but in a nice little gift box, as well. It seems to be decent quality. It's got some weight to it and doesn't seem like it will come off the chain or break real easily. It also included a mood explanation card at the bottom of the box. My only complaint is that one of the halves seems to change when you are not touching it and the other half doesn't seem to want to change when you are holding it. We've only played around with one half, since the other half is a gift, but the one we took out doesn't want to change any color other than blue to black (when we put it in the freezer!). The half that we haven't taken out of the plastic has just randomly turned blue to green to yellow to red. It's cool but.... odd. I thought it was suppose to be body temperature sensitive. In any case, they are very cute and I am happy with my purchase.

Bought these for my niece for Christmas and she was super excited to give one of them to her bestie. Good quality, the charm with its mood changing colors is cool. Perfect gift for a 12 year old girl.

When my daughter's three sister-friends moved away, we wanted to get them something like this. I didn't even know they made them in sets of four until we checked Amazon! This is a very pretty set; the chains are sturdy and the color change works like it's supposed to.

I got this as a gift for my 6 yr old boy! But the only problem is he gets to be annoyed by this necklace because the heart key chain keeps falling off!

My son wanted this for a friend at school, not sure how they kept up

Cute necklace, chain a bit shorter than expected, but measures the size as advertised