https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_88319490-2a39-4aa0-ac4a-c8902d795d7a.jpg https://youtu.be/7gYu6Xw-Pfw Reproduce the genius design of Leonardo da Vinci, the model that the novice can also finish easily! The slinger is a weapon that originated in ancient times as a siege warfare; it was designed to throw rough and heavy rocks to enemy lines and defenses. Da Vinci's goal is to increase the destructive power of weapons, and enhance the actual surface and operability. https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_18e1c695-c9ca-486f-87d9-2e01c066c3c7.jpg ▲ The assembly process does not require glue, paint, or batteries at all. Only careful eyes are needed to ensure that the various gears and components are installed in the correct position. ▲ The design uses a flexible limb (similar to helium) to store energy, surpassing existing slugs and increasing the power of projectiles! ▲ It is possible to replace other soft material items as throwing objects and increase the fun! https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_e9904cdc-a2da-4fe2-8b63-186b2a51ac27.jpg https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_f7241481-cb13-46b7-98e4-4ef7c2cf51ba.jpg https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_da01b853-026c-45d2-b13a-288e13ee005e.jpg Product specification: ► Product size: 32 x 12 x 14.3 cm ► Package size: 20 x 30 x 5.75 cm ► Material: Plastic ► Origin: Philippines Precautions: ► The battery-free, color-free and glue-free assembly can be completed. ► Please take care of children swallowing small parts ► This product is suitable for use over 14 years old ► Please note that the appreciation period is not equal to the trial period. If there is an assembly, it will affect your return rights. Please keep the package intact when you return the replacement. If it is damaged, it will be difficult to return. ► Books, merchandise, gifts, etc. that are covered with plastic film are subject to the return policy. If the film has been unsealed, no returns will be accepted. ※ Be sure to confirm that each part is assembled correctly and closely during assembly to ensure proper operation of the model after assembly.