660PCS Metal Assembly DIY Toy Mechanical Gear Transmission Mechanical Transmission Ballista

660PCS Metal Assembly DIY Toy Mechanical Gear Transmission Mechanical Transmission BallistaFeatures:.The ballista, one of the powerful medieval siege weapons, is made of copper and built with the mechanical transmission device and 180° adjustable launch angle for large span in mobility..The Ballista Operating Procedures: Pull the crossbow string on winch and rotate the winch to tighten the crossbow string. Then put the cannonball in the crossbow orbit and adjust the launch angle for 180°. Last, press the trigger switch for launch..With a total of 660PCS, the laser cut and premium quality metal model in high precision can be connected with screws and without glue according to assembly drawing. We guarantee 1-2 hours of fun and excitement depending on your hand dexterity for your assembly..Assembling the model kit, not only exercises kid’s hand-on ability and creativity, but also is perfect for weekend entertainment activities for you and your children..After assembling, the set is a highly simulated scaled artwork ornament presenting children the medieval urban wars and wisdom of the ancients.Specifications:.Material: Metal.Product Dimensions: 20.5 x 9 x 7.5cm.Product Weight: 400g.Package Dimensions: 20 x 15 x 5cm.Package Weight: 650g.Packing: Box