Poly Bags Clear Self Seal Suffocation Warning 400 pcs Combo Pack 1.5 Mil: 4 Sizes. 100 Each: 6x7.5, 8x9, 9x11, 11x12 Meets Amazon's FBA shipping supplies packaging requirements. Easy peel and seal closure. No impulse sealer needed. 1.5 mil 4 Sizes. 100 Each: 6x7.5, 8x9, 9x11, 11x12 Suffocation warning in English, French and Spanish.