This is the X-Acto #9RX Retractable Blade Knife.

FEATURES: Chisel blade is ideal for intricate cutting of vellum, paper, photos and more Handle with pocket clip Only for use with the X-Acto X209 blade (XACR0209)

INCLUDES: X-Acto #9RX Retractable Blade Knife with Blade  

BOX DIMENSIONS: 1.88" W. X .63" H. X 8.88" L. BOX WEIGHT: .04 LBS.