760pcs 3D Mechanical Metal Archimedes steam crossbow Model Kit Metal Assembly Mecha Assemble Toy 3d puzzles toys for Boys Adults

Features:

.Hand-made: Designed with 330pcs+ fine & precise metal parts, this model contains detailed assembly instructions and a tool kit, as well. This model walks you through the world of micro-mechanical metal DIY assembly and helps you exercise hands-on ability.

.Well-made: Made of stainless steel and alloy, the delicate and smooth surface of the parts provides a comfortable hand feel. With exquisite workmanship, the assembled model can be preserved for a long time, as a fashion collection model, or for home desktop decoration.

.Ideal Gift: The combination of handmade woodwork and mechanical aesthetics allows for the creation of a magical tool that can eject small rubber bands, creating everything without any constraints. The gameplay is diverse and creative.This creative holiday gift, to create a surprise for others, is suitable for the majority of metal machinery DIY enthusiasts, and parent-child interaction to enjoy wonderful leisure time.

Background Story:

Early records show that the Greek scientist Archimedes designed a steam powered weapon to protect his hometown Syracuse from invaders. This weapon uses steam as its power and can launch crossbows with explosive and destructive power.

Specifications:

Size: 23.5*6.9*14.5cm
Product weight: 790g
Packing weight: 1000g
Estimated assembly time: 19h
degree of difficulty:****