These are DLC vacuum bags with certain specifications:

1. **Quantity and Size:**
- **Quantity:** The set contains 100 bags.
- **Size:** Dimensions are 25x17 cm.

2. **Quality and durability:**
- **High Durability:** Made of high quality materials to ensure high durability.

3. **Compact design:**
- **Airtight seal:** Design helps keep food fresher for longer.

4. **Compatible with vacuum machines:**
- **Compatible:** Designed to be compatible with most vacuum machines for easy use.

5. **Usage:**
- **For food preservation:** Ideal for preserving food in the refrigerator or freezer.

6. **Suitable for various foods:**
- **Suitable for various foods:** It can be used to preserve a wide range of foods.

7. **Easy operation and use:**
- **Clear operation:** It can be used easily and simply.

Be sure to follow the instructions included with the bags for best results.