Each needle minder is made from birch plywood, the animal shape sits on the front of your work, whilst the other magnet on the round plywood shape sticks to the reverse side. You just need to pop your needle on top of the animal and there you have it - a safe home for your needle when not in use. The Heart is roughly 45 x 55mm in size, and comes presented on a 72 x 104mm backing card.