The very popular YoYoFactory Shutter is the signature model of two time USA National Champion and 2014 World YoYo Champion Gentry Stein.
The model shown in this exhibit is purple with a blasted (matte) finish, released in December, 2016. Uses a size C center trac ball bearing axle and 19 mm silicone pads.
The Shutter was updated in September, 2017 to have a wider body.