The Siser Blade Holder is designed to accommodate commercial-grade precision cutting blades— just like the ones found in profressional cutting machines. With a dual-dial system, you can easily load both 45° and 60° blades (sold separately) into the holder and fine-tune the blade exposure for optimal cutting performance. Simply twist the silver dial to adjust the blade's exposure, then twist the gold dial to lock it in place. The built-in magnet securely holds your blade in place so you can start cutting just like the pros! Details: Red casing AluminumFor use in Siser cutting systems Compatible with 45° and 60° blades (sold separately)