Abstract: A flybox for keeping flies on pads therein. Magnets are arranged on the inner faces of the flybox where the pads are seated, giving the possibility of exchanging them easily and quickly. Thus the fisherman avoids having to buy and carry around numerous flyboxes, since with just one or two he is able to combine all variations and selections of dry and wet flies, keeping the rest of the pads which he will not use that day in his bag. Preferably four magnets are arranged on each inner flybox face and a like number distributed likewise on each exchangeable pad, with the poles of the magnets oriented for attraction. Alternatively, the pads may be metallic.