Grade 3 and up. The Squishy Circuits® Blue LED glows blue while connected to a Squishy Circuit. Pack of 5.

Grade 3 and up. The Squishy Circuits® Blue LED glows blue while connected to a Squishy Circuit. Pack of 5. Note: Never connect a Squishy Circuits® LED directly to the battery holder. The LED's longer leg should be connected to the red battery holder side. Squishy Circuits® LEDs are consumables when used in Squishy Circuits®. The terminals will break and erode during use. Each LED can be expected to run continuously for a few hours before it needs to be replaced.