Scalpel Blades - (4) No.21, Pack of 100The No. 21 scalpel blades in this pack of 100 are compatible with No. 4 scalpel handles. Designed for dissection tasks requiring a curved, elongated blade, they are ideal for making longer incisions in biology practicals. Made of stainless steel, these blades are suited to high school and tertiary level laboratory use. Educational Benefits: Introduces students to intermediate level dissection tools. Encourages attention to precision and technique in