ExpellPlus low retention pipette tips have an ultra-smooth inner surface, which reduces sample binding to the absolute minimum. Thanks to the composition of the PP material used in the production of ExpellPlus tips and the high-quality Swiss molds on which the tips are manufactured, the low binding properties of CAPP tips are achieved without the use of surface additives. ExpellPlus pipette tips are the perfect choice for volumes less than 1 ml and for all applications requiring ultimate precision.