More pieces = more play...and more savings!

Each Mystery Box is packed with a surprise assortment of colorful pieces. You might find open-play color mixes, guided sets, mini packs, wheels, or baseplates. The contents will vary, but every box is full of creative potential.

Will there be a cool car, a Mystery Maker, a space ship? Glitter, glow, or neon pieces? Maybe all of the above!

Each box is full of surprises and special requests can't be guaranteed but because Plus-Plus is always the same simple shape, the more pieces you have, the more you can create—from tiny characters to massive builds - the only limit is your imagination!

Choose your box:

A Little Mystery – $9.99 (Value of $20+)
At least 300 pieces — a perfect addition for a quick creative boost.

Even More Mystery – $29.99 (Value of $75+)
At least 1,000 pieces for bigger builds and bolder ideas. Guaranteed to include at least one baseplate!

All The Mystery – $49.99 (Value of $130+)
At least 2,000 pieces, plus guaranteed wheels and baseplates to build beyond the basics.

Mystery Boxes are final sale and not eligible for returns or exchanges. Purchasing more than one box does not guarantee different contents.

Suggested for ages 5+
Created in our 100% wind-powered factory in Denmark
Made with recyclable polyethylene plastic
BPA-free and phthalate-free
Each piece measures .75" x .5" (20mm x 12mm)

Find inspiration on our App!

Bestsellers

Plus-Plus Mystery Box

Mystery Box - Education Edition