VEVOR 18\" Backhoe Thumb, 1/2\" Teeth Thickness Heavy Duty Excavator Thumb, Black Steel Weld On Thumb Attachments with 12mm Bolt-On Design Adjustable Mechanical Thumb for Backhoe/Excavator 1/2" Thick & 18" Long Sharp Thick Teeth Sturdy and Stable Easy to Install Adjustable and Removable Wide Application Tooth plate thickness: 1/2 in,Length: 18 in,Material: Steel,Weight: 24.7 kg / 54 lbs