Premium Anti Shatter Glass Materials: Made from thickened tempered glass for scratch resistance and deformation , solving the fragility issues of ordinary glass while maintaining precisions during frequent Tongue sanding. Complete 2 Piece Sanding: Includes a 10cm glass sanding plate and sanding rod to cover the entire Tongue area significantly improving woodwind instrument maintenance efficiency with professional grade tools. Transparents Real Time : Clear glass allows visual thickness control during sanding, over grinding and Tongue damage commonly caused by traditional blind sanding metal plates. Light weight & Portable Design: Weighing only 59g with compact 17cm paper box packaging, easily fits into instrument cases for quick Tongue adjustments during rehearsals or . Multi Instrument Compatibility: Works seamlessly with saxophone, clarinet, and other woodwind Tongue, featuring glass fiber construction that protects delicate Tongue fibers without requiring frequent tool changes.