This prosthesis fits that both pressure and position sense are transmitted to the body for subconscious control needed for activities such as typing. The Biochromatic color matching is so good that customary use of a ring to disguise the juncture with the skin becomes purely an option.
Our coloring process has led to thumb prostheses whose juncture with the normal skin is hardly perceptible. Total thumb amputations at the base of the palm have no satisfactory solution, but the prostheses for amputations extending 12.5 mm or more beyond the web can result in considerable benefits. Also note that the perfection of fingernail details which have integrated UV filters for color stabilization.