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Green Science Salt Powered Robot DIY Mini Building Kit, Ages 5+

Available at 3 stores

Best price · Nordstrom $24.99
Bloomingdale's $24.99

Prices as of September 26, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.

Price history tracked at Nordstrom price trackerBloomingdale's price trackerKohl's price tracker

14-day low
$24.99
Sep 13 · Nordstrom
Best price
$24.99
−7% vs high
14-day high
$26.99
All stores
$27$26$25
Sep 13Sep 26
  • Kohl's
  • Nordstrom
  • Bloomingdale's
Lowest in 14 days: $24.99 at Nordstrom. Highest: $24.99. Current best is 0% below the 14-day high.

About this product

The 4M Salt Powered Robot DIY Building Kit is a hands-on STEM toy designed for children ages 5 and up. This buildable robot operates using saltwater as a power source, teaching kids about alternative energy and sustainable technology through interactive play. The kit includes a chassis, motor, arms, wheels, magnesium and copper sheets, and other components needed to assemble a functional robot. It encourages problem-solving, scientific curiosity, and creativity in young learners while promoting eco-friendly innovation.

  • Saltwater-powered operation
  • Includes 4 magnesium sheets
  • Buildable robot with motor
  • Plastic construction
  • Suitable for ages 5+
  • Encourages STEM learning

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