Smead SMD15 SMD5 SMD5 SMD15 SMD5 Ideal for big, bulky files that get plenty of use, these folders are constructed with heavy-duty 5 pt pressboard. Extra sturdy matching color Tyvek gussets mean you can keep large amounts of paperwork in these folders with confidence. " capacity prong fasteners at top of folder are ideal for separating out key documents. Straight cut tabs (labels sold separately).