*Items: 30pcs 5.9x7.88 inches/15x20cm antistatic bags for 3.5" hard drive , It also can be used for RAM, I/O memory card, earphone and other electronic parts,small amount is very suitable for individual buyers | *SAFETY ENVIRONMENTAL PROTECTION: We bags made from high quality Polyethylene Terephthalate (PET) with an aluminized film, high and low temperature performance of ±500c, non-toxic and eco-friendly, no odor | *MOISTURE RESISTANCE OF CLASS II:High quality sealing belt reusable, with high sealing performance, waterproof and dampproof,it have a moisture resistance of Class II, it also can be vacuume to prevent oxidation of electronic components | *MULTI-USE:30pcs Antistatic bags for packaging different electronic components, such as hard drive,LED light bars,Sensitive electronic components,I/O cards,or store your electronic products like earphone,data cable etc | RESEALABLE ｜ TRANSLUCENT BAG: Our bags allow you to easily seal your products without the need for other equipment,you can easy to see the items inside,good ideal for store electronic parts, such as hard drive,memory, earphones, data cable, ect.. We also attach num matching antistatic lables for better use. **Please make sure you choose the right size**