These trailer accessories have so many uses and provide so much utility, you’ll have no use for any other blocks at all. U.S.A. Includes qty. 4, Length in. 9 3/4, Working Width in. 9 3/4, Height in. 1.5. 3/8in. dia. braided rope handle Keyed slot accepts a standard awning rod A raised top ridge and recessed bottom groove allow the blocks to nest together Solid top and bottom no-open webs to sink into ground or asphalt 2in. dia. x 1.5in. deep recessed center for straight and wheeled tongue jacks 45 bevel