The aLOKSAK is an element-proof storage bag that prevents leakage and preserves items against damage from water, air, dust and humidity. These bags are made of a durable polyethylene blended film and are 100% water/air tight. They are considered disposable though, unlike other 100% water/air tight bags, they can be opened and resealed numerous times. Item # Dimensions For These Products aLOK3-3x6 3" x 5.5" 7.6 x 14cm Great for iPhones and other smart phones aLOK3-4x7 4" x 6.5" 10.2 x 16.5cm Great for smart phones in bulky cases (OtterBox) aLOK3-5x4 4.75"" x 4.0" 12 x 10.2cm Blackberry phones, medical supplies aLOK3-6x6 6.25" x 5.25" 15.9 x 13.3cm Personal items, wallets, car keys, cameras aLOK3-6x12 5.75" x 12" 14.6 x 30.5cm Great for most e-readers, smaller tablets, two way radios aLOK3-8x11 7.75" x 10.50" 19.7 x 26.7cm Great for iPads and other tablets *new aLOK3-9x6 8.4" x 5.25" 21.3 x 13.3cm Great for TSA use, Small Tablets & Some E-Readers aLOK3-12x12 11.75" x 12" 29.8 x 30.5cm Great for maps, documents and photos aLOK2-12x44 11.75" x 43.75" 29.8 x 111.1cm Weapons, charts, building plans aLOK2-12x48 11.60" x 47.75" 29.5 x 121.3cm Weapons aLOK3-13x11 13.25" x 10.5" 33.7 x 26.7cm A4 letter size. Documents and maps aLOK2-16x24 16.0" x 23.85" 40.6 x 60.6cm Open laptops will allow for working in harsh environments aLOK2-32x16 31.25" x 16.0" 79.4 x 40.6cm Clothing, Weapons