Two-piece fastener easily adjusts to capacity. Hinge reinforced with Tyvek for everyday use. Space-efficient covers. Fastener easily adjusts to capacity. Hinge reinforced with Tyvek for everyday use. Space-efficient covers. Global Product Type: Report Covers-Prong Fastener; Fastener Type: Two-Piece Prong Fastener; Front Cover Color(s): Executive Red; Back Cover Color(s): Executive Red.