The passive partial hand system enables prosthetic reconstruction of part of the hand. It consists of functional passive finger and thumb prostheses that can be positioned at different angles in one or two joints. The weight-optimized stainless steel joints with variable-length finger or thumb attachments are very robust and water-resistant. The finger or thumb covers, which vary in length, are made of durable and dirt-repellent HTV silicone.

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The fingers are mounted directly to the shaft with two screws coming from the shaft or aligned and fixed in position using various frame types made of stainless steel sheet and aluminum adapters. The fingers can be equipped with a cable-pull joint and, optionally, a grid joint. The joints work in such a way that pulling the cable causes the cable-pull joint to bend.