Description: All tips are made from clear virgin polypropylene which is chemically resistant Universal design to fit most common pipettes, worry-free from the size problem Perfect airtight seal ensures there would be no leak Well designed with 28 sockets which are used to hold centifuge tues with exceptional accuracy and precision Perfect tip geometry ensures you top pipetting performance in the lab Specification: Material: polypropylene Overall Size ( L x W x H ): approx. 12.4cm x 8.5cm x 16.5cm / 4.88 x 3.34 x 6.5 Inch Color: as shown in display pictures Socket Amount: 28 Package Includes: 1 Piece Pipette Pipettor Tip Box