The brand new Tim Holtz Rotary Media Trimmer features a geared rotary cutting blade for effortlessly cutting through a range of crafting mediums. The trimmer has both metric and imperial rulers and a handy 0.25" gridded base with popular paper sizes for easing measuring. The compact base measures 12.5" in length and with extendable arms giving 12" in width, this trimmer is both versatile and practical. Not only is the Tim Holtz Rotary Media Trimmer highly engineered and durable, it can also cut through various substrates including heavy duty chipboard (up to 0.05" thick), heavyweight cardstock (up to 350gsm), synthetic surfaces (Yupo and acetate), and lightweight vellum with ease.