+3 BLOCK HANGER 10760000 $9.99 In stock Quantity: 1 Add to Bag Product Details UPC: 792176931911 Brand: Hobie Part #: 10760000 Boom Block Hanger Boom block hanger manufactured by Hobie Cat Company. Hole spacing is 1-1/8 inch. Use four 6-4 rivets for installation. Save this product for later Favorite