SPECS: Steel, black, powder-coat finish. Approximately 5" (12.5cm) long, 2" (5cm) wide, 1" (2.54cm) high. Instructions included. Hold Down Clamp – Steel, powder-coated, black. Approximately 4" (10cm) long, 1½" (3.8cm) wide, 3¾" (9.5cm) high). Comes with clamp assembly, jaw screw, 3⁄32" hex wrench, and instructions. Slide Stop - 1018 steel, black oxide finish. Approximately 1¼" (3.2cm) long, ½" (1.3cm) wide, 1" (2.5cm) high. Includes stop block, stop pin, hex wrench, (5) 6-32 setscrews, and instructions. P500 Universal Sight Tool Kit contains the P500 Universal Sight Tool, Hold Down Clamp, Slide Stop, and complete instructions.