| Item No. | Head Diameter | Length | Description |
| D101 |
Φ20 |
40/45/50/55/60/65 | PMMA Transparent head with screw/2 balls/Coin type install |
| D102 |
Φ23 |
40/45/50/55/60 | PMMA Transparent head with screw/2 balls/Coin type install |
| D103 (1 ball） |
Φ23 |
40/45/50/55/60 | PMMA Transparent head with screw/2 balls/Coin type install |
| D105 |
Φ24 |
40/45/50/55/60 | PMMA Transparent head with screw/2 balls/Coin type install |
| D201 |
Φ20 |
40/45/50/55/60/65 | PMMA Transparent head with screw/2balls/Bayonet type |
| D202 |
Φ23 |
40/45/50/55/60 | PMMA Transparent head with screw/2balls/Bayonet type |
| D203 |
Φ23 |
40/45/50/55/60 | PMMA Transparent head with screw/2balls/Bayonet type |
| D205 |
Φ24 |
40/45/50/55/60 | PMMA Transparent head with screw/2balls/Bayonet type |
| D301 | Φ25 | 57/63 | PMMA Transparent head with screw/2 balls/Coin type install |
