Perfect Pupil® Injectable, flexible iris expansion ring with a 0.24mm groove and 9 scalloped tabs to securely hold a billowing, floppy iris through 315°, made of flexible polyurethane to keep a small and constricting pupil dilated to 7mm throughout the surgical procedure, aids in cortex and epithelial cell removal, retains pupil's normal size, shape and function postoperatively, CE marked, FDA approved, sterile, disposable, box of 6