100 Translucent Gray Premium Anti-Static Flat Zip Lock Bags for Electronic Parts Outer Size 6.5x12cm (2.6x4.7") Colors (Front/Inside/Back): Translucent Gray/Translucent Gray/Translucent Gray Outer Size: 6.5x12cm (2.6x4.7"), Inner Size: 5x10cm (1.9x3.9") *Size may vary 1-2mm. Material: Anti-Static Mylar, Thickness: 3 MIL (8C) Can store up to 25g of powdered products