A square section steel tube 25x25x430mm for carrying out an experiment in level gauging, basic scarring, absorption and parcel deflection in the magnetic field, etc. There is a raise 40cm scale graduate in millimeters along the front of the bench. There are also three magnetic molded plastic bench mounts with a 3mm slide slot to hold a range of absorbers or source holder. Two aluminum source holders are also provided, the large of which has three collinear 4mm holes to accept mounting pegs of standard sources. Complete with a full circular paper protractor and two bulldog clips.