The model of the prosthetic device with four fingers attached, is
Watch How Mind-Controlled Bionic Arms Fuse To The Body, Currents
From iron hooks to moving hands: The evolution of partial hand prostheses—a surgical perspective - ScienceDirect
Split hook prosthetic hand - Stock Image - C054/8064 - Science Photo Library
Regal Partial Hand Glove - Embreis FI
3D Printed Prosthetic Hand Helps Out For About $150
Steeper Group - Split Hooks
Introduction to Body-Powered Hooks
4: Split-Hook hand prosthesis. [44]
Image of Prosthetics Artificial arm with attachments, c 1921-1930