The MK4 fenn trap is suitable for all small vermin species e.g. Rats, Squirrel etc. Remember these traps are dangerous and you need to exercise proper care when handling or setting your traps and you must check at your traps at least once every 24 hours.

Under the UK implementation of AIHTS, as of April 1 2020 these traps will no longer be approved for killing Stoats.