Mini Pure Copper Steam Engine Model Gift Collection Science Developmental Toy DIY Project Part G-1 Type_Single Cylinder Stirling please do not scratch with

please do not scratch with hard objects

Galvanized aluminum promises durability

Speed: 110km/h

Under 13 years old

width and height: 320mm*280mm*250mm

Mini Pure Copper Steam Engine Model Gift Collection Science Developmental Toy DIY Project Part G-1 Type_Single Cylinder Stirling please do not scratch with6. 5 x 4. 6 x 7. 3CM Mini Pure Copper Steam Engine Model Without Boiler Creative Gift Set Features: . Beautiful Appearance: Small and novel in shape, can be placed in the palm of your hand like a treasure. Exquisite mini, let a person fondle admiringly. Is an excellent craft . High Quality: The product is made of all copper, delicate execution, bright surface, glittering . Parameters: Steam engine length 65mm, width 46mm, height 73mm. The weight is