Plastic; mil-p-3115 type pbg; rectangular configuration and cross section; 1/2 in. W by 1/16 in. Thk by 8-3/4 in. Lg; 3 holes 0.100 in. Dia; holes centered on longitudinal center line; spaced 4-1/4 in. Center to center; 1st hole centered 1/8 in. From end of strip