VEVOR Hydraulic Backhoe Thumb, 18 inch 1/2" Thickness Heavy Duty Excavator Thumb, Black Steel Weld On Thumb Attachments with Hydraulic Cylinder, Mechanical Hydraulic Thumb for Backhoe/Excavator 1/2" Thick & 18" Long With Hydraulic Cylinder Sturdy and Stable Easy to Install Adjustable and Removable Wide Application Tooth plate thickness: 1/2 in,Length: 18 in,Material: Steel,Weight: 28.7 kg / 63.2 lbs