Tested for durability 4 3/4" overall. Textured pink anodized aluminum construction with replaceable aerosol inserts. Effective range is 3 feet. Produces three, one-half second bursts. Contains 10% Oleoresin Capsicum. Made using the highest quality materials 10-Percent Oleoresin Capsicum formulation Precision machined from aerospace aluminum and solid brass Entire unit is o-ring sealed Capacity is three, one-half second bursts Replaceable "Heat" (OC) or "Test" (inert) inserts available see Part No. 54910 and No. 54911, respectively.