This is a Fiskars rotary cutter and wave blade, and an extra wave blade.
Rotary Cutter Spare Knife 45 Mm, 5 Pcs, for Leather Cutting Circular Knife, Round Blade, for Fiskars and Olfa Rotary Cutter
45mm WAVE OLFA® Rotary Blade. Stainless Steel Olfa® Brand Rotary Cutting Blade. Decorative Wave Edge. 1 Blade/pkg. #WAB45-1
Fiskars Rotary Cutter w/ Wave Blade & 45mm Rotary Wave Blade
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Fiskars 45mm Wave Rotary Cutter Replacement Decorative Blade 9533 for sale online
10,000s of amazing materials by JOANN x Ribblr
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Fiskars Rotary Cutter w/ Wave Blade & 45mm Rotary Wave Blade Cutter Replacement
45mm Rotary Cutter Blades Set For Olfa Fiskars Sewing Fabric Leather Quilting With 10pc Replacement Pinking Lace Knife Patchwork - Knife - AliExpress