Trademark Home Glow in The Dark Path Markers/Perimeter Lights 8 Gray Rock Styled Pieces Each Measure: 9.75 x 4 x .25 inches 7 Glowing Pieces Each Measure: 3.125 x 4 x .25 inches 23 Nails Each Measure: 2.5 x .25 x .25 inches Combine Pieces to form a Path up to 99 inches Long No Batteries Required