Understanding range of motion and how to observe changes in it to avoid damaging joints.

It does not assume that people will move in the same way.

Doll joints are not a direct replica of human bodies. The direction of movement, holding power, and range of motion vary depending on the type and model of the skeleton. Please check that the pose in the sample photos was taken with the same specifications. Rather than bending the joints to their limits to match the outfit or composition, it is best to adjust within the possible poses.

Record changes at an early stage.

If you notice any sudden loosening, unusual resistance, strange noises, or surface puckering, avoid repeating the same operation to confirm the changes. Return to a state where there is no load, and record when and in what direction the problem occurred. If you are asked to provide a video, follow the dealer's instructions to avoid worsening the condition by attempting to reproduce it yourself.

Before starting repairs, ask about the scope of work.

Internal frame defects cannot be fixed simply by applying adhesive to the surface. Check the warranty, return policy, parts replacement, and availability of professional repairs. Before purchasing, it's helpful to ask not only about the name of the frame, but also whether the necessary postures are actually possible, and who will perform adjustments and repairs, as this will make future management easier.