This construction building set comprising 44 pieces of durable metal pieces and self locking nuts for endless creativity and construction fun. Each piece is designed for easy assembly, allowing kids to unleash their imagination and build various structures.

Product Features:

• Half inch pitch of the hole
• Bigger assembly space to build
• New tools
• Easy build
• Attention to build
• More self-locking nuts
• Age 8
• 44 Pcs