Japanese SKS-7 Steel：Razor-sharp, rust-resistant blades cut cleanly through 10 fabric layers at once—long-lasting durability for heavy-duty use. Universal 60mm Compatibility：Fits all 60mm rotary cutters (for Olfa, for Fiskars, for Martelli & more) — seamless drop-in replacement for professional crafting needs. Heavy-Duty Multi-Material Cutting：Ideal for quilting, sewing, scrapbooking; cuts thick fabrics, leather, vinyl, batting (up to 8-16mm layers) with precise, clean results. 10-Pack with Rust-Proof Storage：10 oiled blades in a resealable plastic case — ample spares + protection against scratches/rust for long-term use. Easy Replacement for All Users：Wear-resistant design with simple snap-in/snap-out installation — suits right/left-handed crafters for consistent, hassle-free performance.