Plarail coupler parts, normal type, and N gauge replacement couplers. It is unclear if they are unopened or all opened and partially used, but for Plarail, there are two sets of 3 pieces each, and one more set with an extra piece on one side (photo 4). For N gauge, it is an opened 10-piece set with 9 pieces remaining. Photo 6 shows used items, but they are a bonus. Please forgive any age-related deterioration.