We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Yellow crane, two small vehicles, grey compound and moulds on a snap-fit tray

12-oz Concrete Educational Kit

SKU CH-54SG-6K6F2

Moldable concrete kit with crane, vehicles and molds for hands-on STEM building play

  • MaterialPlastic
  • 12 oz moldable compound builds driveways without water or drying time
  • Working crane and two vehicles lift and haul for realistic jobsite play
  • Four molds and traffic accessories expand creative construction scenarios
  • Snap-fit tray contains mess and doubles as storage lid for quick cleanup
  • Heavy-duty plastic withstands sandbox grit and enthusiastic preschool handling

Concrete Construction Kit for Ages 3+

This 12-oz moldable concrete set lets children mix, pour and shape driveways, bricks and barriers without water or drying time. The compound sticks together instantly and never dries out, so builds can be reshaped again and again. A working crane, two 3-inch vehicles, four molds and traffic accessories create a complete jobsite in one box. The snap-fit tray keeps pieces organised for indoor or outdoor play.

Mess-Free Sensory Play

The compound stays pliable and cleans up in seconds because the tray doubles as a storage lid. Heavy-duty plastic vehicles and tools survive sandbox grit, gravel and daily preschool use. Scooping, packing and lifting strengthen fine-motor skills while introducing early engineering concepts. No batteries or power are required, so the kit runs silently and produces no heat.

Ready-to-Build STEM Set

Everything needed for construction play arrives in the single tray — no extra tools, supplements or assembly required. The 12-oz compound volume supports multiple builds before a refill is considered. The kit frees up shelf space by combining vehicles, molds, accessories and storage in one footprint. Buyers who want a larger vehicle fleet or a bigger compound supply will need additional sets.

Highlights

  • 12 oz moldable compound builds driveways without water or drying time
  • Working crane and two vehicles lift and haul for realistic jobsite play
  • Four molds and traffic accessories expand creative construction scenarios
  • Snap-fit tray contains mess and doubles as storage lid for quick cleanup
  • Heavy-duty plastic withstands sandbox grit and enthusiastic preschool handling

Specifications

MaterialPlastic

Questions about this item

How do I set up the 12-oz moldable compound and tray so it does not make a mess?

Pour the compound directly into the snap-fit tray, pack it into the four molds, and lift out finished pieces; the compound never dries out and the tray lid seals everything for instant cleanup.

Will the compound or any of the 40-plus pieces need replacing after repeated builds?

The reusable compound never dries out and the heavy-duty plastic crane, vehicles, and molds are built to survive sandbox grit and gravel, so no consumable refills are required.

What stops a build session first when a child keeps scooping and lifting continuously?

The only limit is the 12-oz volume of compound in the tray; once every mold is filled the child simply reshapes the same material for the next project.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.