Prepare your surfaces for troweling with the Marshalltown 9 inch x 4 inch Coarse Rubber Float. The 5/8 inch pad is specially bonded to a stiff aluminum backing plate. This float works well on sand surfaces and can help with desired rough finishes. Sponge rubber pad, aluminum backing plateUsed for creating texture in concrete, stucco and drywall applicationsCoarse cell5/8" coarse red rubber pad is specially bonded to a stiff aluminum backing plate9" L X 4" W