The GSC281NP is an outer sleeve connector made of nickel-plated soft bronze for a shielded cable grounding system made of 2 cylindrical sleeves, for solderless crimp connection. Length 1/4 Inch/6.4mm, inner diameter .281 Inches/7.14mm, outer diameter .331 Inches/8.40mm. The sleeve is color-coded according to their size. The color code is purple.