For trimming and sanding very uneven surfaces of your boat with this prime quality sanding belt. The 1 1/2 X 132 400 G BELT (10/Pack) (312400-1.5-PK) is made with the newest abrasive technology. It is excellent for preparing bronze and stainless steel propellers for polishing. This sanding belt has a grinding-inducing additional layer that decreases the grinding temperature. The flexible J-weight backing helps to avoid gouging and chatter. To protect and prolong the life of the belt and the material being used. Use 1 1/2 X 132 400 G BELT (10/Pack) (312400-1.5-PK) on metals, high alloy steels, and stainless steels. Key Features: For trimming and sanding very uneven surfaces Made with the newest abrasive technology It has a grinding-inducing additional layer that decreases the grinding temperature Best used on metals, high alloy steels, and stainless steels Specifications: Brand: Klingspor Abrasives SKU: 312400-1.5-PK UPC: 312400F01413204 Weight: 0.44 LBS Quantity per Packaging: 10 Size: 11/2 inches x 132 inches Grade or Grit: 400 Klingspor s Superflex belts are excellent for preparing bronze and stainless steel props for polishing. Their hi-performance grit keeps them cutting longer than most abrasive minerals. Extremely flexible J-weight backing helps to avoid chatter and gouging.