C.S. Osborne Long Bayonet Point Curved Mattress Needles. Curved long bayonet point needles. Similar to Osborne No. 503 leather point needles but edges are hand polished. Sharp edges. Size : 8 Length (overall) eye to point : 8" Gauge : 14 Pack of 12 needles Osborne needles and pins have long been considered a standard for fine quality. C.S. Osborne & Co. is a manufacturer of specialized hand tools designed exclusively for upholsterers, auto trimmers, awning and canvas workers, furniture makers and other professionals in related trades. For generations, the family run business has always taken great pride in engineering the highest quality tools and offering our products both here in the United States and abroad. C.S. Osborne produces the most extensive line of custom tools available -and we guarantee that our tools will deliver excellent quality and superior performance.