Geith”s hydraulic Pro-Link Thumbs offer maximum rotation and versatility to excavator bucket operations. The Pro-Link Thumb follows the bucket tip through an extended range of motion, with rotation of at least 180 degrees to match the bucket working cycle and provide increased flexibility in handling situations. The thumb also improves pick-up and placement of material closer to the excavator. The universal linkage pivot system installs easily on any excavator arm without removing the dipper arm linkage. A built-in linkage positional stop protects the thumb ram.