3M Pro Grade Precision Faster Sanding Block Sponge helps you get the job done fast with premium mineral. Pliable design let's you get into hard to reach places. Resists clogging for long use. Can be used wet or dry. Rinse and reuse.Comfortable, powerful - the 3M Pro Grade Precision Faster Sanding Block Sponge delivers a great sanding experience in the palm of your hand. This durable sanding sponge helps you get the job done fast with premium grits, and the pliable design lets you get into hard to reach places. A unique coating resists clogging for long use, and this sanding sponge is perfect for wet or dry sanding. When your job is complete, simply rinse the sponge and reuse it. Get a professional result with the 3M Pro Grade Precision Faster Sanding Block Sponge.