Marson Poly-Nut Kit, Includes #8-32, #10-24, #10-32, 1/4-20 Mandrel & Nosepiece, 52 Assorted Klik Poly-Nuts, (12) M57425, M57435, M57445, (16) M57455, Molded Plastic Case, Weight 3lb. (1.36kg)