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:
| Team | Location | Stadium | Capacity | Manager | Captain | Kit manufacturer | Shirt sponsor |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Auckland City FC | Auckland | Kiwitea Street | 3,500 | Ramon Tribulietx | Ivan Vicelich | Nike | Trillian Trust Inc. |
| Canterbury United | Christchurch | ASB Football Park | 9,000 | Keith Braithwaite | Dan Terris | Samurai | Robbie's Bar and Bistro |
| Hawke's Bay United | Napier | Bluewater Stadium | 5,000 | Chris Greatholder | Bill Robertson | Samurai | Kinetic Electrical |
| Otago United | Dunedin | Forsyth Barr Stadium | 30,500 | Richard Murray | Tristan Prattley | Canterbury | Gran's Remedy |
| Team Wellington | Wellington | David Farrington Park | 3,000 | Matt Calcott | Karl Whalen | adidas | Exodus Health & Fitness Club |
| Waikato FC | Hamilton | Porritt Stadium | 2,700 | Mark Cossey | Adam Thomas | Nike | The Soccer Shop |
| Waitakere United | Waitakere City | Fred Taylor Park | 2,500 | Paul Marshall | Jake Butler | Lotto Sport Italia | Cuesports Foundation |
| YoungHeart Manawatu | Palmerston North | Memorial Park | 8,000 | Stu Jacobs | Nathan Cooksley | Nike | New Zealand Pharmaceuticals |
Question:
how many different kit manufacturers are involved?
Answer:
5