Made of AR-GLAS Only requires setting meniscus one time Contrast blue enamel ensures optimum combination on resistance and readability Features full ring marks and major graduations Flexible screen stencils for volume markings to match calibration marks for enhanced accuracy at all intermediate volumes Optimized flow geometry for reliable liquid dispensing from pipet Fire-polished edges for durability Available in all ISO sizes from 1 to 10mL Supplied with batch number and an accompanying USP batch certificate in original packaging