4B Shields4B Shields Sizes: S, M, M1, M2 and L The 4B shields have the exact same size and shape as our popular 3B shields but are wider and taller. With a taller height and broader width, these shields provide unparalleled coverage for long lashes, ensuring exceptional results. The taller height ensures that even the longest lashes stay within the shield's confines. Bid farewell to kinks or crookedness and embrace flawlessly lifted lashes. 4B Shields are