NOT 3/8 LIKE OUR COMPETITORS. Please measure your bucket like the last picture on the right shows.Larger machines have more bucket force than smaller one's. Base is 4 3/4" x 18" long. The item "LINVILLE Heavy duty 32 HYDRAULIC backhoe thumb hoe clamp attachment" is in sale since Thursday, May 21, 2015. This item is in the category "Business & Industrial\Heavy Equipment Attachments\Other Heavy Equip Attachments". The seller is "linville4864" and is located in Crestline, Ohio. This item can be shipped to United States.