Micro Machines 7414 Tuff Trax Collection #1 The Greatest Super Monster Vehicles.  Micro Machines 7414 Tuff Trax Collection #1 is a must-have for the fans of diecast cars.  It is suitable for children aged 3 years and above, as well as collectors who are 17 years and above. With its detailed designs and durable construction, this Micro Machines Tuff Trax Collection is a great addition to any diecast car collection. Please ask questions and look at pictures before bidding. Thanks for looking and check out my store for other great items. Slim Pickens Online Store. I will combine shipping.