SPECS: 5" x 3.125" x.75" Flies not included USES: Organize your flies by hatch, river, or season in one small package with the Tacky Day Pack Room for 180 flies. Our bi-directional slit design proves that sometimes big things do come in small packages. DESIGN & DETAILS: Original patented silicone anchoring technology Withstands extreme temperature range High visibility lid Strong, latchless magnetic closure Durable and tested for long-lasting strength Recycled polycarbonate box Patented design.