Funny 11th Birthday T-Shirt, Square Root 121 Years Old Tee

Black Funny 11th Birthday T-Shirt, Square Root 121 Years Old Tee main image
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Celebrate an 11th birthday in style with this unique black t-shirt! The shirt features a clever mathematical design with the square root of 121, playfully indicating the birthday age. Made from a comfortable-looking, soft fabric, this short-sleeved tee is perfect for everyday wear and birthday parties. It's a fun and quirky way to mark the special occasion. The text is clear and easy to read, making it a standout piece. This tee is a great gift idea for kids turning 11 who love math or appreciate a good joke. Make their birthday memorable with this awesome shirt!

Tags:

#birthday #t-shirt #eleven #square root #math #gift #clothing #black
$35.99 $9.99

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Variant 1 of Funny 11th Birthday T-Shirt, Square Root 121 Years Old Tee
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FAQ

Size Guide

Our tees fit true-to-size. Check the size chart before ordering to ensure a perfect fit.

Shipping Time

Processing 2–3 business days; standard delivery 5–12 business days depending on destination.

Care Instructions

Machine wash cold with like colors. Do not bleach. Tumble dry low. Iron inside-out if needed.