Arizona Cardinals SLATE Riddell Speed Mini Football Helmet. The Slate Collection takes a stylish, distinctive approach to NFL helmet design. Each Arizona Cardinals mini helmet features a flat gray shell, gold face mask and flat finish gold treatments of each team’s primary helmet decals. Based on one of the most popular on-field designs, this collectible Speed Mini football helmet is made specifically for fans of the Arizona Cardinals. At approx. 5.5 in. tall, this half-scale display helmet is perfect for all football fans and great for autographs. The helmet features a mini size Speed shell, the S2BD-SW-SP face mask, a 4-point chinstrap, and official paint and decals. The perfect Arizona Cardinals collectible or gift!