Oklahoma State Replica Speed Mini Helmet - Pistol Pete The ultimate NCAA College mini speed football helmet collectible perfect NCAA mini speed football helmets for autographs and collectors Official NCAA Mini Speed Football Helmet with official NCAA team decal. Realistic interior foam padding, vinyl-leather chin strap Size: 1/2 scale versions of NCAA football helmets. Size: 6"(L), 4"(W), 5"(H) - (NOT FOR WEARING).