Sklar's Merit scalpel handle #4 is similar to the #3 scalpel handle, but compatible with the larger size 20 series disposable blades. It is used for sharp dissection. Merit instruments are Sklar’s office-grade line of products and most commonly utilized for routine and in-office minor procedures. There are centimeter and millimeter markings on the handle for measuring tissue and a center groove for thumb and forefinger gripping.