This is a package of Excel #18 1/2" Chisel Blades.

FEATURES: Steel construction Used for carving and shaping Packaged in clear plastic tube for safety

INCLUDES: Five #18 1/2" (12.7mm) Chisel Blades Clear Plastic Tube

SPECS: Width: 1/2" (12.7mm) Total Length: 1.9" (49mm)  

BOX DIMENSIONS: 2.13" W. X .63" H. X 4.50" L. BOX WEIGHT: .04 LBS.