NT Cutter Blades for Heavy-Duty Circle Cutters and Mat Board Cutters, 10-Blade per Pack (BC-400P) Blades for heavy duty circle cutters (C-2500P, C-3000GP, CL-100P) and mat board cutter (OL-7000GP) 9mm W x 20mm L x 1mm T Made of high quality carbon tool steel Packed in hanging plastic case Cutting Material: Foamboard, matboard, soft film, leather, thin rubber sheet, card stock, any other thin material 10ea per pack Made in Japan