Use this replacement blade with the We R Memory Keepers® rotary cutter (sold separately). This 3.5" x 4.75" x 0.375" package contains one replacement blade. Warning: this product contains chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. Do not mouth or chew. Imported.Details:Measures 3.5" x 4.75" x 0.375"Sold as a single replacement bladeImported durable metal cutting blade1 piece per pack