Thoughtfully designed to support emotional well-being, our sensory kits and dough jars help kids navigate big feelings, build focus, and find moments of calm through simple imaginative play.
Created by moms, for real life with kids.
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Encourage Sensory Exploration
Supports Self-Regulation & Coping with Overstimulation
Encourages Problem Solving & Motor Skills
Reviewed & Tested by Parents
Engaging, Fun Materials
Why Simply Undefined
We’re two sisters and moms who created Simply Undefined to support kids with big feelings and busy lives. Our products are designed to bring calm, creativity, and connection into everyday moments with no pressure and no one “right” way to play.
Let customers speak for us
Very cute! My great niece loves the dough jars! She took them to daycare for her Valentines!💖
My great niece loved the Valentine dough jar! She even had to hold on to it while she was getting dressed :) She also loves to play with the dough on the mat.
Love this jar. The students enjoy making a holiday scene and placing gifts under the tree!
Love this jar. So much happiness in it!
My students love making the Dino imprints. We have been talking about fossils because of this jar. The studentshave started exploring what other items leave prints.
This is the best thing ever! My students beg to play with it. They work hard so they can earn playdough jar time!!!!
Customer service was outstanding, they included a little mini coloring book and pencils with our order. The rainbow was left out of one of the dough jars and it was quickly realized and mailed to us prior to Christmas. Our kids just love these!
This was the hit of ALL the Christmas gifts! My kids are 9, 7 and 2 years old and each one of them has loved the little scenes they can make. I am so pleasantly thrilled with this gift! Great company, great customer service, cannot recommend enough!
My grandson LOVES the Dino dough! I was surprised how long he sat and played with this little treasure, given he is only 2 1/2.
These kits are so cute! My kids of all ages are enjoying them. From my 1 year old to my 10 year old. The dough kits are something fun to bring out first thing in the morning - they buy me a few minutes to empty the dishwasher and get breakfast ready while everyone is playing something calmly and within my sight.
I sent this kit to my niece for her almost 2 y/o daughter. She tells me she loved it! My niece liked all of the items in the kit, and especially the zippered pouch to keep them all together. Great quality too!
