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Out of Stock
Geomag™

MASTERBOX PRO-L, 388 Pieces

$279.99
Stimulate your child's developing mind and channel their creativity with Geomag MASTERBOX PRO-L 388 piece magnetic construction set. Your little engineer-in-the-making will gain the tools to build architecturally sound structures like a bridge using… Read more
Age Group
3+ years
Grade Level
Grade PK+
Material
Magnetic Bars and plastic pieces are made of PP colored plastic with a steel pin inside and two Nd-Fe-B magnets zinc coated at the ends. Spheres are made of steel white bronze coated
Color
Silver, Light Blue
Out of stock
Expected back in stock: Sep 24, 2026
Stimulate your child's developing mind and channel their creativity with Geomag MASTERBOX PRO-L 388 piece magnetic construction set. Your little engineer-in-the-making will gain the tools to build architecturally sound structures like a bridge using panels, magnetic rods, and non-magnetic steel spheres. With a little imagination, they can build something more fantastical and abstract! This STEM.org certified toy is designed to help children develop hand/eye coordination, motor skills, problem solving, and visualization through the science of magnetic construction. PRO L magnets are 30%+ stronger than our classic line allowing for larger creations. STEM.org certified toy that helps in the development of creativity, fine motor skills in addition to stimulating imaginative play and curiosity through the science of magnetic construction.

Key Features

  • Magnetic construction platform that helps kids grasp science concepts in magnetism and magnetic polarities
  • Helps kids gain knowledge in engineering concepts by creating a remarkable number of structures and configurations through trial and error
  • Designed to help stimulate children's creativity by allowing for expanded play possibilities
  • Promotes hands-on learning and offers a creative approach to problem-solving by building 2D shapes, 3D shapes and graduating to larger and more complex structures
  • STEM.org authenticated
Age 3+ years
Assembly Required No
Balloon No
Battery Included N
Brand Geomag™
Color Silver, Light Blue
Contains Aerosol No
Contains Chemicals No
Contains Pesticide/Herbicide/Fungicide No
Contains a Circuit Board No
Contains a Light Bulb No
Contains a Marble Yes
Contains a Small Ball No
Contains or is a Small Magnet No
Eco Friendly Yes
Free Flowing Liquid No
Grade Grade PK+
Has Warranty No
Height (in) 4.330000
Is a Marble No
Is a Small Ball No
Length (in) 12.200000
Marketing / Educational Features STEM
Material Magnetic Bars and plastic pieces are made of PP colored plastic with a steel pin inside and two Nd-Fe-B magnets zinc coated at the ends. Spheres are made of steel white bronze coated
Media Mail Eligible No
Package Contains 388 Pieces
Package Count 388
Pre-Consumer Recycled Material (%) 100% Recycled plastic
Registered with WERCS N
Regulated by the US FDA No
Sharp Points or Edges No
Small Parts Yes
Suitable for Consumption No
Unit of Measure EA
Vendor GEOMAGWORLD USA INC
What Makes it Eco Friendly RECYCLED PLASTIC
Width (in) 10.040000
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