White Lightning # 1 Jaw Replacement Part resembles the shape of a "Duckbill". #1 STYLE JAW can hold many different size manual needles. The best feature is it can open large enough to hold up to a size #72 needle. Making it perfect for Lip Blushing. Style #2 "Criss X Cross" jaw holds many size needles even the smallest nano needles. Perfect for "Micro-Blading" Replace your new jaw holder into the handle by simply unscrewing the old jaw from the handle and replacing it with the new one. Now that's EZ!