Braun 40B CoolTec Foil & Cutter cassette unit.
This is a foil & cutter one piece cassette. Just pop your old one off and replace it with this new one.
These spares should be replaced on a regular basis for optimum performance.
To fit models: CT2S, CT2CC, CT5cc, 5676
(Post and packing to a UK address is only £2.50 for one set or free of charge if anymore than one set is ordered.)