These hand sculpts, inspired by "Master of Puppets" seemingly emerge from the center of sling plastics behind the skulls and appear to hold (and cover up) the ugly stainless steel UV light banks on each sling, providing a more finished and on-theme look to the sling area. The mounting is hidden by a wooden stake that appears to be pinning each hand to the sling.
The kit includes left and right hands, easy to follow step-by-step instructions, and the hardware to complete the installation.