What it isW&N - Kneaded Putty Rubbers Large from Winsor & Newton. A professional-quality product from the UK’s most respected artist materials brand. The materialsWinsor & Newton have been making professional artist materials in Britain since 1832. This product follows the same quality standards applied across the range: professional-grade materials, independently tested, designed for artists who take their work seriously. Who it’s forArtists, students, and designers who want a reliable product from a manufacturer with a long track record of quality. Whether you’re building a student kit or restocking a professional studio, Winsor & Newton is a dependable choice. How to use itFollow the product-specific guidelines for best results. Our team at Callender Street can advise on application and compatible products — ask in store or give us a call. Why we stock itWinsor & Newton is our anchor brand. Every art supplies shop stocks it; we stock it because it’s genuinely good.