Baseline outcome measurements will be performed with subject's existing partial hand prosthetic treatment, as deemed standard-of-care by the patient's prosthetist. Device types include, but are not limited to, no prosthesis, passive prosthesis, passive positional prosthesis, body-powered prosthesis, myoelectric prosthesis, or other assistive device.

Outcome measurements will be performed ~60 days after the subject has been fit with a prosthesis, with additional visits occurring immediately post-fitting and ~30 days post-fitting.

Patient is fit with the Point Mini finger prosthetic system, which consists of 1-4 ratcheting mechanical digits and mounting brackets

The PUFI-2 is a measure of manual ability for children with upper limb impairment with and without a prosthesis. PUFI-2 consists of a questionnaire listing 23-27 manual activities and asks how the child performs the activity, how difficult it is to complete, and whether the prosthesis is useful or not. Both self-report and parent proxy-report versions are available.

The PROMIS Ped - UE is a questionnaire that measures upper extremity physical function specifically in children. Both self-report and parent proxy-report versions are available.

Throughout the study, subjects and their parents will fill out weekly logs asking their experiences during the day, number of hours wearing the device, descriptions of the tasks performed, and open-response sections to clarify/detail any other events. The weekly logs will be in sealed envelopes and not opened until the completion of the study by the experimenters.