19mm Aluminum Roller with Blue Plastic Ring (3-spoke)

★ These spools with the largest size available (19mm) and made of aluminum will provide you with lightness and maintain speed ★ Soft plastic rings around them reduce friction against the track wall to preserve your acceleration ★ The large size allows you to get the maximum allowed width for cars on the track once installed directly on the chassis ★ Will last with you for a long time because they are made of aluminum ★ The triple-line aerodynamic design 2× aluminum spool, with what you need for installation, original from the Japanese company Tamiya For installation: small square screwdriver - suitable for ages ten and above, and under supervision of adults Note: Some structures may require modification