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I am tough and strong, My name is


480 reviews

A strong and rough bot, made up of 235 building bricks. This toy robot’s distinct design allows for several combinations of squares, circles, triangles, cylinders, and so much more.

Price: $16.95

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Endless Imagination For Your Child

Grindburst is a tough-guy, full of power. He uses one arm as a ground-breaking drill and his other as a sledge hammer. His might is in the details. This kid’s robot becomes a ferocious thunderbird with soaring wings and jet blaster claws, and a high-speed excavator.

Construct - Engage - Create

A World Of Endless Possibilities and Imagination

Every Robotryx toy is made from premium quality material that has been tested by the Consumer Product Safety Commision (CPSC). ROBOTRYX building bricks are made from non-toxic materials and are BPA free. They are durable and easy to clean. Everyone of our robots is made of vibrant colors and includes pieces that are fully jointed and have a wide-range of 360° movement.

The Robotryx robots were created around a STEM learning system. Every one of the robots are designed with the “BUILD - UNDO - REBUILD” model. When your child plays with the Robotryx toys, they are developing new cognitive skills, problem-solving techniques, and new levels of creativity. This mode of play has been proven to reduce stress and anxiety and improve attention span. The Robotryx toys are also designed to sharpen fine motor skills. We know how important it is to keep a child’s interest and curiousity peaked, that is why we created robots that are versatile and exciting. We believe play time should be a time to grow!



Building your robots with your kids is so simple. Follow the instructions in the PDF file above. Download it and have fun.

480 reviews for Grindburst

  1. Kristina harper

    Very easy to use my son loves it!

  2. V

    This is a great product, right down to the plastic storage case it comes it. My son enjoyed putting it together and wants more. I wish they were cheaper. 😀

  3. Thanu Farrell

    My son loves it

  4. Tammy K

    My son likes that there are so many different options with these sets. He spends hours playing with them. I don’t think they stay together as well as Legos but other than that they are great sets. He’s collected 3 of the sets so far.

  5. Julie Pruitt

    Students loved them!

  6. Emily L.

    Love the drills

  7. Customer

    Very easy ro make.

  8. hammer

    Easy to use kids love itReally good value

  9. Mike Sheppard

    Kre-O was ahead of its time, glad to see another company has picked it up and rekindled the fire of transformer-like buildable collectibles

  10. Whitewolf

    Top you great value

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