The Autism jigsaw puzzle kit has 19 pieces in 5 different colors, plus one blank piece. It is designed to fit all of the Sierra Style pen kits.
Like the original Kallenshaan puzzle kit, this kit is designed with all different interlocking pieces. The kit comes ready to assemble, with complete instructions.
On a degree of difficulty scale from 1 to 5, this kit is rated a 5.
Autism Puzzle Inlay Kit.pdf