Skip to content

Gears! Gears! Gears!® Mega Builds

Marsoni M251S
Sale price$384.50
Pay 4 payments of $96.12 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Gears! Gears! Gears!® Mega BuildsBring your machine dreams to life with our biggest Gears! building set yet! Engineer twisting, turning creations with this 225 piece STEM building sets colorful moving gears, then add to the fun with accessories including wheels and propellers. Works with all Gears! sets. Perfect for classrooms and maker spaces!
Easy Shipping

Quick Dispatch:

Your Gears! Gears! Gears!® Mega Builds orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your Gears! Gears! Gears!® Mega Builds ships.

Need Help?
Questions about Gears! Gears! Gears!® Mega Builds, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for Gears! Gears! Gears!® Mega Builds in your area.

Get Shipping Estimates

Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 978 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
KDK in Texas
Draper, US
★★★★★ 3
Pretty Colors to Encourage Me to Walk!
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
Hum. Extra large does not seem extra large. I have a slender but size 10-10.5 foot. Will keep but was hoping for a looser fit. Bought to match an Under Armour walking outfit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
P
Patti J Fredley
Lowell, US
★★★★★ 5
Socks
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
So cute
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 6, 2026
R
Verified Purchase
Randy Deasy
Alexandria, US
★★★★★ 5
Not to thick or thin well made
Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
I bought pink so as not to lose when doing laundry with my daughter who steels all socks lol!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
S
Verified Purchase
Stacey Cohick
West Palm Beach, US
★★★★★ 5
Perfect
Size: X-Large, Color: (601) Bittersweet Pink / Stone / Stone
They were perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
S
Verified Purchase
Susan Brown
Natrona Heights, US
★★★★★ 5
Very Comfortable!
Size: Medium, Color: (601) Bittersweet Pink / Stone / Stone
Very comfortable. Don’t slip off back of heal. Love the colors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026

recommand products