Serious collectors understand the value of a pristine collection. With the Mainline, you can shield your prized Hot Wheels and Matchbox cars from the ravages of time, dust, and damage. The maintains your vehicles in mint condition, protecting your investment. It allows a clear visual catalog of your collection and peace of mind knowing your treasures are safeguarded. The Mainline model 17201 fits card size 4. 25" x 6. 5" and blister size of 3. 25" x 2" x 1. 7" depth. Easy to Open and Close: The cases are functionally engineered for user-friendly operation, featuring a snap closure that secures the contents tightly. This design not only ensures safe storage but also allows for easy access, minimizing the risk of accidental pops of the cars when opening the case. Ample Corner Space: The design incorporates generous corner space to prevent bending and creasing of card corners. This feature is essential for collectors who want to maintain the pristine condition of their cards, preserving their value and aesthetic appeal. Durable construction and design: Unlike flimsy alternatives that may crack under pressure, the s are built to last. Their robust construction is complemented by a space-saving design, making them ideal for collectors with limited storage space.