This set includes (5) Tube Nut - 3/16" - 3/8 - Inverted, (5) Tube Nut - 3/16" Long - 3/8 Inverted, (5) Tube Nut - 1/4" - 7/16 - Inverted, (5) Tube Nut - 1/4" Long - 7/16 Inverted, (5) Tube Nut (Japanese) M10 - Inverted, (5) Tube Nut (Euro) M10 - Bub, (5) Tube Nut (Brit) 3/8 - Bub, (5) Union 3/16 x 3/8 Inverted, (5) Union 1/4" x 7/16", (5) Union 3/16 x 3/8-24 Bub, (5) Union 3/16 x M10 x 1.0 Bub, (5) Union 3/16 x M10 x 1.0 Inverted, (5) Adapter - 3/8 Inverted x 3/8 Bub, (5) Adapter - 3/8 Inverted x M10 Bub, (5) Adapter - 3/8 Inverted x 7/16 Inverted, (5) Adapter - 7/16 Inverted x 1/2 Inverted, (5) Adapter - 7/16 Inverted x 9/16 Inverted, (5) Adapter - 3/8 Inverted x 1/2 Inverted and (5) Adapter - 3/8 Inverted x 9/16 Inverted.