The Scalpel Blades No.22 Pack of 100 is an essential tool for any science classroom. These blades are designed to fit handle no. 4, ensuring that they are compatible with most standard scalpels. With 100 blades included in each pack, you'll have plenty of replacements on hand for even the most intricate dissections. The No.22 size is ideal for precision cutting and is perfect for use in biology, anatomy, and other science classes. Invest in these high-quality blades to ensure that your students have the best tools for their scientific explorations.