1. Silicone rubber fits tightly, safe and stable without injuring the machine
2. Aluminum alloy + silicone, stable and durable
3. Multi-film stackable, compatible with 49mm filters
4. Material: aluminum alloy, silicone
5. Adaptable to 49mm filters
6. Weight: about 6g
7. Size: about 52 x 6.8mm
8. Note: only the holder is included, other items in the picture are not included