All Hulless products are fulfilled by Amazon with 100% guarantee fast shipment and good customer service.Material of rectangular containers: made of good quality tin plated steel. Product Size: 95 x 58 x 21mm/3.7 x 2.3 x 0.8(L*W*H);Material thickness:0.23mm.Round smooth edges No Sharp Edges.The top and bottom are permanently attached so you never have to worry about losing the lids.(6 per pack)These metal containers have snug closures, and may help prevent germination by protecting the contents from light and moisture.Keep them as is and use