Oxford - Utili-Jacs Heavy-Duty Clear Vinyl Envelopes, 6 x 9, 50/Box - Sold As 1 BoxThumb notch at top for easy page insertion and retrieval of materials. Heavy vinyl and welded reinforced edges for extra durability. Envelope is water-proof and tear-proof to provide maximum protection. Load Orientation: Top; Sheet Capacity: N/A; Sheet Protector Type: Envelopes; Insert Size: 9 x 6.Thumb notch at top.Heavy vinyl and welded reinforced edges.Envelope is water-proof and tear-proof.