The Stackables Construction Compatibility Kit allows you to combine and connect Laser Pegs to other types of construction kits!, Features:, 21 Stackables, Stack them or Connect them side by side to light up, Connect to other types of Construction Kits, WARNING: CHOKING HAZARD - Small parts, Not for children under 3 yrs, Dimensions:, Depth: 1, Height: 10, 25, Width: 6 SKU: RTL25CR050