From the Manufacturer Most Popular Size Cutter For Quilting, Crafting And Sewing Made in the USA or Imported RAZOR SHARP 45MM ROTARY BLADE - The RTY-2/DX is pre-loaded with an RB45-1H Endurance Rotary Blade. The ultra-sharp rolling razor blade delivers unparalleled sharpness and superior edge retention for twice the life of a standard rotary blade. SQUEEZE TRIGGER HANDLE - Easy squeeze handle exposes the blade and self-retracts for safety. The curved handle with anti-slip rubber grip reduces hand fatigue and stress. The integrated grooves help prevent finger slippage. QUICK EASY BLADE REPLACEMENT - OLFA's 45mm Rotary Cutter has a blade system that provides simple and safe blade changes. The dual-action safety lock allows the blade to be locked while open or closed. INTRICATE ACCURATE CUTTING - Provides detailed and precise cutting of a variety of materials including cotton, wool, paper, vinyl, leather, and more. Also fits our Pinking Blade (PIB45-1), Scallop/Peak Blade (SCB45-1), and Wave Blade (WAB45-1). THE OLFA STANDARD - As the inventor of the Rotary Cutter in 1979, OLFA has maintained a standard of cutting excellence for our quality and durability. Pairing OLFA brand rotary cutter, blades and cutting mats together will provide optimal results.