Check the listing for details. 50:Osborne Covered Button Kit-Nylon Super Hook, Soft Shells,Poly Washer Size:45. Color: Off White & Silver, Condition: New. Listed at 22.99 USD. 50 Count : C.S. Osborne & Co.No. WCM45SHSS & WWAP138 Complete Button Making Kit , Size 45Nylon Super Hook withSoft Shells and Poly Washers SIZE 45 : 1-1/8" Diameterfor making Covered Buttons**Profesional Grade** (MPN #77156 & 74747) Size 45 buttons are 1-1/8" diameter. 50 Quantity YOU Will RECEIVE: (50) No. WPSH45 Super Hook- size 45. (MPN #77156) Superhook is perfect for use on: reversible cushions, nonreversible cushions, tight seats, chair backs, bolsters, hassocks, etc. Fast installation, low cost, perfect tufting depth every time. Knots won’t come untied due to operator fatigue. Includes High quality soft shells, which is the top part of button. * Tapered shank allows button to sit flat. * Exclusive slope design guides loop into hook with one pass. Cuts production time, cuts costs. * Curved double snubbers keep loop from riding up into lock channels. * Smooth edges will not fray twine. * Ribbed nylon exerts additional pressure to hold finished buttons together. * Extra high impact nylon, solid one-piece, for added strength. * Grooved rim helps hold material and shell tight to the collet. * Great for vinyl. Puts the stop on pop-offs. * Double lock channels further restrict loop from ever ridding up. and (50)No. WSHS45 Soft Shells , Size 45. (MPN # 77700) SOFT SHELLS are the most popular since they prevent tearing of the material. These are rust resistant to minimize rusting problems and the resultant damage to the upholstery. * Tapered shank allows button to sit flat. * Exclusive slope design guides loop into hook with one pass. Cuts production time, cuts costs. * Curved double snubbers keep loop from riding up into lock channels. * Smooth edges will not fray twine. * Ribbed nylon exerts additional pressure to hold finished buttons together. * Extra high impact nylon, solid one-piece, for added strength. * Grooved rim helps hold material and shell tight to the collet. * Great for vinyl. Puts the stop on pop-offs. * Double lock channels further restrict loop from ever ridding up. and (50) NYLON POLY WASHER FOR SUPER HOOK, No. WWAP138: (1-3/8 diameter) Ideal washer for super hook buttons. It has one inch diameter. Great holding power. (MPN# 74747) Osborne Button Parts are an Industry Standard for Quality Upholsters. These are rust resistant to minimize rusting problems & the resultant damage to upholstery. BUTTON SHELL, SUPER HOOK BUTTON BASE, & POLY WASHER ONLY Button Press and size 45 dies are required - NOT INCLUDED FABRIC NOT INCLUDED ABOUT THIS BRAND- C.S. OSBORNE & CO. Established in 1826, 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 through our great network of distributors and wholesalers, both here in the United States and abroad. C.S. Osborne produces the most extensive line of custom tools available. They guarantee their tools will deliver excellent quality and superior performance. In addition to their broad line of hand tools, in the early 1990’s, C.S. Osborne & Co. purchased the Wade Button Company of Woburn, MA and began making buttons, dies, hand press machines, etc which all proved to be very complimentary to their existing product offering. In addition to the tools and buttons, the company has always offered a vast range of industrial hand sewing needles of all shapes,gauges and lengths, including pins, skewers and awls.