The center of the finger groove maze is an octagonal transparent Plexiglas with 8 radial arms

At each the distal end of each arm is a cubic wooden box (5cm x 5cm x 5cm). In the front panel of each box is a lever that can be pressed to make a marble fall down on a metal plate inside the box, which produces a sound for reward.

8 different textures are available to place in the bottom of each pathway, each black in color to prevent visual discrimination. Custom materials available. Includes selection of:

• Cardboard
• Velvet
• Rubber
• Acrylic
• Cloth
• Wool

Specification

• 20 cm long × 5.5 cm wide × 4.0 cm edge height
• 8 materials
• 8 cubic wooden boxes (5 cm x 5 cm x 5 cm) with metal flooring
• 8 marbles in interior