Engino's Creative Builder set gives young engineers 25 different vehicle models to build from a single collection. The patented snap-fit connecting system lets builders assemble models easily, so parts come apart and go back together in a new shape as often as kids want. An extraction tool makes disassembly easy: squeeze it to release small parts, or push it into the hole to pop out a locked piece. Step-by-step instructions guide beginners through quick, satisfying builds.