features and Details:
1. Medical grade PVC material, can do non-O-benzene material
2. Can do transparent or green
3. The air source connector can be made of straight or screw
4. Elastic band can be made of latex or latex-free material
5. High oxygen concentration transmission
6. Anti-bending and anti-clogging design of inner wall of star tube specifications:
| product Number | kind | model | detailed description |
| EC23010101 | children's Standards | S | with oxygen connecting pipe |
| EC23010102 | child lengthening | M | with oxygen connecting pipe |
| EC23010103 | adult Standards | L | with oxygen connecting pipe |
| EC23010104 | adult lengthening | XL | with oxygen connecting pipe |
