Description: This is a brand new 4-pin hard plastic watch case holder. Will not scratch crytal and steel watch case with plastic pins. Indicated to keep large watch case up to 55mm. With the watch holder, you can easily open the watch back case in seconds for repair or other uses. Perfect for small parts, electronics, hobby work: jewelry, model makers, and more. Specification: Material: Aluminium alloy, Plastic Color: Black Max Clamping Range: Approx. 55mm/ 2.17inch Size: Approx. 13.5x 5.5x 3.5cm/ 5.31x 2.17x 1.38inch Package Includes: 1 Piece Bench Vise Note: The color may have different as the difference display, pls understand. Please allow 1-3mm error due to hand test