Proto TDI Eclipse Deck - 5.5" WideThe Eclipse is the most versatile deck plate in Proto's lineup. It's the result of the lessons learned from its predecessors, has the highest strength to weight ratio, and the deepest concave to date. We'd recommend this size for riders who want more foot space, and grind space but still want high maneuverability. Andrew Broussard created the TDI (Tunglok Deck Integration) deck system to resolve the issues that welded decks bring. To put it simply,