PVC MATERIALS - Water resistant / oil / liquid resistant and can withstand heavy objects. And they are semi-transparent. you can see the articles inside. easy and practical to use. WALLET WITH CLEAR CLOSURE - Nylon band for hanging. Large practical storage space. can store all documents. papers. toys. and other learning accessories. office supplies. also for travel. Organize phones. cosmetics. passports. badges and more. VISIBILITY - Thanks to its Semi-transparent component. so you can easily find and display the items you need. Such as learning cards. small items. cosmetics. pencils. small tools. etc. STURDY AND EASY TO HANDLE - The four corners of the backrest bags are well designed. so they won't scratch the lining of your bags or fingers. 30PCS A5 ENVELOPE 23.5 * 17cm. Ideal for classification. storage and presentation. office. industry. home and school.