GENUINE Replacement Part INCLUDES 1 Thick Blue Track Connector PERFECT Shape and Fitting for your Hot Wheels Track Builder Unlimited Power Boost Box Track Set AUTHENTIC REPLACEMENT PARTS come in a sealed plastic bag - as received from Manufacturer MADE FOR MODEL # GNJ01 - Hot Wheels Track Builder Unlimited Power Boost Box Track Set Replacement part for Hot-Wheels die-cast vehicle race track playset GNJ01. Includes 1 thick blue track connector.