Park Tool PRS-25

100-25D Professional Micro Adjust Clamp for any tube from 7/8'' to 3'' (23-76mm), including aero tubes Narrow clamping jaws (2.7''/7cm) fit into tight areas or on short seat posts 360º clamp rotation, clamping height adjusts up to 60'' Quickly and easily folds to 47'', weight: 13 pounds (6 kg)