Miami Dolphins Riddell VSR-4 Throwback ’97-’12 Mini Football Helmet. The ultimate NFL mini football helmet collectible, perfect NFL mini football helmets for autographs and collectors. Mini football helmet with great graphics. Official NFL mini football helmet with official NFL Miami Dolphins team decals, ABS plastic mini football helmet shells with Z2B facemask, realistic interior foam padding and vinyl-leather chin strap. This is an affordable NFL football helmet for the true fan. Size: 1/2 scale versions of NFL football helmets. Size: 6"(L), 4 ½"(W), 5"(H) - (NOT FOR WEARING)