4 Oblong Blocks No. 6803 - 6" x 1" x 3/8" 4 Square Blocks No. 6404 - 6" x 1/2" x 1/2" 4 Round Sticks No. 066 - 6" x 3/8" dia. 4 Round Sticks No. 086 - 6" x 1/2" dia. Excellent for engine turning, cleaning, deburring and polishing metal surfaces, for breaking edges, smoothing away high spots, removing rust, heat marks, tarnish and stain