Wahl 2110 Trim'N'Vac & Goatee Beard Trimmer Blade Set

2110 Trim N Vac Replacement Blade Set, Upper & Lower Blade

Fits Trim'N'Vac 5570, 5577 and Goatee 9879, 9877, 9877-500
If you have a model 5577 and your blade does not look like the picture above try item 2040