Ultimate Guard's Sidewinder 133+ Xenoskin is a premium Magic: The Gathering deck box offering exceptional card protection with its durable Xenoskin material, microfiber inner lining, and strong magnetic closure—all while providing easy and convenient access to the cards inside. With space for 133 double-sleeved cards in Ultimate Guard sleeves* and printed with officially licensed artwork from the "Magic: The Gathering | Teenage Mutant Ninja Turtles" set, the Sidewinder 133+ Xenoskin is the ideal MTG deck box for Commander/EDH, offering extra space for additional cards and tokens. Designed to combine with Ultimate Guard's Omnihive, Superhive, and Smarthive mass storage boxes.