Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Series Ep. | Episode | Segment A | Segment B | Segment C | Segment D |
| --- | --- | --- | --- | --- | --- |
| 21-01 | 261.0 | Rubber Gloves | Soap Carvings | Aircraft Cabinets | Motorcycle Brake Locks |
| 21-02 | 262.0 | Powder Horns | Handcrafted Moulds | Perogies | Inner Tubes |
| 21-03 | 263.0 | Lace | Antique Frame Replicas | Orchids | Unicycle Wheel Hubs |
| 21-04 | 264.0 | External Hard Drives | Frozen Shrimp | Thai Rice Boxes | Paper Towels |
| 21-05 | 265.0 | Tea | Roof Finials | Artificial Flowers | Alloy Wheels |
| 21-06 | 266.0 | Gel Caps | Playground Spring Riders | Frozen Pancakes | Natural Rubber |
| 21-07 | 267.0 | Paper Umbrellas | Coal | Aircraft Seats | s Cremation Urn |
| 21-08 | 268.0 | Aluminium s Canoe | Wooden Stave Bowls | Wheelchair Accessible Vans | s Marimba |
| 21-09 | 269.0 | Indy Car Seats | Paper Flowers | Standby Generators (Part 1) | Standby Generators (Part 2) |
| 21-10 | 270.0 | Customized Knee Replacements | Leaf Springs | Lavender Essential Oil | Rivets and Rivet Tools |
| 21-11 | 271.0 | Cast Iron Stoves | Ultralight Aircraft | Snow Groomers | Rubber Bands |
| 21-12 | 272.0 | Barber Chairs | Sewage Pumps | Bimini Boat Tops | Diesel Filters |
Question:
What are the titles of segment a for series episode 21-12?
Answer:
Barber Chairs