it features a cross over back, plus multiple snap sizes for the the cross back to attach to so that you can get the perfect adjustment for your twins. we can love our self’s to which jesus lives inside of us. i'm loving the mascara and brow gel too! working on no 2 cylinder first, i actually took another 0.027″ off the face, which agrees with my drawing. or should we stick to the tried and true golden book model? an easy way to remember how to cook them is the 5- 5- 5 method. 