The Collector Shack Shop › 4" Acrylic Hard Stack With Magnetic Lid Image 1 of 6 Image 2 of 6 Image 3 of 6 Image 4 of 6 Image 5 of 6 Image 6 of 6 4" Acrylic Hard Stack With Magnetic Lid from $30.00 Stackable acrylic hard stack with magentic lid. Pack: Select Pack Single 2 Pack 4 Pack 6 Pack Quantity: Add To Cart Added! Stackable acrylic hard stack with magentic lid.