The Antal 4Race Car #4100 is a durable and reliable option for those seeking high performance in car sizes of 100. It features a simple design with ball bearings, ensuring continued use even under stress. This car is engineered for easy maintenance with side windows for quick cleaning and replacement of the bearings. Features & Benefits Constructed from hard black anodized aluminum for strength and durability Equipped with four ball circuits: 2 Torlon and 2 Delrin for smooth operation Designed to remain on track even if the ball bearings fail Side windows allow for straightforward maintenance and cleaning Includes a special "stand-up" connection for Antal block size 55 mm Available with a 6 mm shackle for versatile use This car is made from high-strength alloy, with all components anodized in hard black for added durability. Steel parts are crafted from AISI 316, and it uses 1/4" balls, including 50 Torlon balls in the lower races and 50 Delrin balls in the upper races. The car is compatible with tracks of similar specifications, ensuring a secure fit and reliable performance in demanding conditions.