This is easily the effect that has outsold all others in the Terry & Norma range over the year. We have now vastly improved the mechanism making it absolutely sure fire. The fronts have ben reprinted and are very bright and easy to clean If you have an old Mouse house and would like us to modify it with the new internal sure fire mechanism, we can do that for £20.00 plus postage at cost. Replacement cheeses are available for £4 inc postage. Replacement full body mice are available for £7 inc. Postage.