Flexible and sturdy for rotary oval & circle cutting work. It cuts perfect bevel openings on single, double, or even triple mats. Adjusts from oval to circle cutter with a simple twist of the knob. Cut ovals from 3-1/4" x 4-3/4" (8.25cm x 12cm) to 21"x 24" (53cm x 61cm) and circles from 4-1/2" to 21" (11.5cm x 53cm) diameter. Features: Cut curved pieces without templates - fast & easy 6 cutting blades are included Bevel cutting Adjustable from oval to circle via a twist knob Oval Cut: 3.25" x 4.75" - 21" x 24" / (8.25cm x 12cm - 53cm x 61cm ) Circle cut: 4.5" - 21" (11.5cm - 53cm) Adjustable difference between oval width and height: Max 3" (7.62cm). What"s in the Box: 1 x Oval & Circle Mat cuter 1 x Bevel cutting head 6 x cutting blades