Thermo Scientific ClipTip 300 low retention 10 x 96 tips ClipTip pipette tips feature 'clips' that lock tips in place and form a complete seal Each time ClipTip pipette tips are on, they are sealed and will not loosen regardless of application pressure ClipTip pipette tips are clipped securely on the F1-ClipTip and E1-ClipTip pipettes with a light touch eliminating the frustration of banging tips on your pipette