- Color: White<br />- Material: PVC<br />- Use for Measuring the interpupillary distance、 suitable for eye test<br />- Package includes:<br />- 1 x PD ruler<br /><br />                                                                                                                                Dimensions: 8.27 in x 2.09 in x 0.31 in (21.0 cm x 5.3 cm x 0.8 cm)<br />Weight: 0.85 oz (24 g)<br /><br />