Difficult

Metal Intelligential Dragon Puzzle Assembly Sculpture (1390+PCS)

Metal Punk Mechanical Dragon Puzzle Assembly Sculpture (2030+PCS)

Handcrafted Wooden Bionic Whale Automaton Kinetic Art Sculpture Model (No Music Version)

Handcrafted Wooden Bionic Bird Automaton Kinetic Art Sculpture

Handcrafted Wooden Bionic Flying Swan Automaton Kinetic Art Sculpture

Handcrafted Wooden Bionic Flying Swan Automaton Kinetic Art Sculpture

Handcrafted Wooden Bionic Fish Lamp Automaton Kinetic Art Sculpture Model (Non Music Box)

Handcrafted Wooden Bionic Cat Night Light Automaton Kinetic Art Sculpture (Non-Music Box)

Metal Puzzle Phoenix Assembly Model Kit 358PCS

Metal Puzzle Mechanical DiverApe Assembly Model Kit (700+PCS)

3D Metal Puzzle Mechanical Bionic Seahorse Assembly Model Kit (2100 PCS)

Metal Puzzle Mechanical Horse Model Kit (1500+PCS)

Metal Puzzle Mechanical Flapping Wings Dynamic Model

Metal Puzzle Fire-Breathing Dragon Assembly Model Kit (200PCS)

Metal Mechanical Hummingbird Model Kit Dynamic Bionic Bird