Boston Celtics Riddell Speed CUSTOM White Mini Football Helmet. This helmet features a matte white shell with green facemask and the Celtics side decals. These helmets are are made with ABS plastic helmet shells and a plastic face mask. Realistic interior foam padding, vinyl-leather chin strap. Mini Helmets are a 1/2 scale versions of NFL/NCAA full size football helmets. These mini helmets measure 6"(L), 4½"(W), 5"(H) - (NOT FOR WEARING). Please note - This is a custom made mini football helmet and is NOT shipped in a Riddell clear retail box. It will be shipped in a protected shipping box.