Features:
1. 100% Brand new and high quality
2. 28 in 1 set Multi-functional for dc Plugs for AC Power Adapter Notebook Laptop Universal.
3. Used for external power source and on-board transformer
4. 5.5x2.1mm Female Jack to 28 multi-type Male Plugs.

Specifications:
Male Plug Diameter outside/inside(or pin):
1: 7.9mmx1.0mm
2: 7.4mmx1.0mm round
3: 7.4mmx1.0mm octahedron
4: 6.0mmx3.0mm
5: 6.0mmx1.0mm
6: 5.5mmx2.5mm
7: 5.5mmx2.5mm
8: 5.5mmx2.5mm
9: 5.5mmx2.1mm
10: 5.5mmx2.1mm
11: 5.5mmx2.1mm
12: 5.5mmx1.7mm
13: 5.0mmx2.5mm
14: 5.0mmx2.1mm
15: 5.0mmx1.0mm
16: 5.0mmx1.0mm
17: 4.8mmx1.7mm
18: 4.8mmx1.7mm
19: 4.0mmx1.7mm
20: 3.5mmx1.35mm
21: 3.0mmx1.0mm
22: 2.5mmx0.7mmx10mm
23: 2.5mmx0.7mmx8mm
24: for apple
25: 4pin female
26: 3pin female
27: 3.5mm mono plug
28: 2.5mm mono plug

Package includes:
1 x 28 Multi-type Male Plugs