| 1. Pipe size | String | X | |||
| 2. Chamfer type | String | ↑ | X |
| 1. Change from round to rectangular | String | X | |||
| 2. Insert type | String | ↑ | X | ||
| 3. Branch type | String | ↑ | X | ||
| 4. Tee type | String | ↑ | X | ||
| 5. Retraction angle | String | ↑ | X |
| 1. Automatic nozzle rotation | String | X | |||
| 2. Brush head diameter | String | ↑ | X | ||
| 3. Curling iron diameter | String | ↑ | X | ||
| 4. Teeth on the straightener | String | ↑ | X | ||
| 5. Brush head features | String | ↑ | X |
| 1. Number of airflow intensity modes | String | X | |||
| 2. AC motor | String | ↑ | X | ||
| 3. Hair dryer power | String | ↑ | X | ||
| 4. Power tongs | String | ↑ | X | ||
| 5. Independent adjustment of heating and airflow | String | ↑ | X |
| 1. Diffuser finger material | String | X | |||
| 2. Wall | String | ↑ | X |
| 1. High temperature | String | X | |||
| 2. Degree of fixation | String | ↑ | X | ||
| 3. Retainer type | String | ↑ | X |
| 1. Full solidification time | String | X | |||
| 2. Maximum diameter of fixed parts | String | ↑ | X | ||
| 3. Maximum clearance of connected parts | String | ↑ | X | ||
| 4. Minimum diameter of fixed parts | String | ↑ | X | ||
| 5. Loosening moment | String | ↑ | X | ||
| 6. Breakdown moment | String | ↑ | X |