The ultimate in self defense. The Slim Line is our newest addition. Lexan knuckles, strong as brass. Don't let 'em know what hit 'em. They won't even see it coming with our unique awesome, ultra-strong, Lexan, Black Knuckles.  These are not toys! These are hand made of the finest quality half inch thick Lexan. Lightweight, strong as brass knuckles. Great self defense product for men and women. Solid construction and built to last. Full size, will fit large or small hand.  These Lexan knuckles will pass right through any metal detector. These are the perfect anti-terrorist device. Never will you be unprepared again.  THIS ITEM IS BRAND NEW! NEVER BEEN USED!  These Lexan Knuckles are machined from the finest quality bulletproof glass and will not break under the most extreme conditions.  * Slim Line Black Industrial Lexan  * Large finger holes.  * 4.5 Inches by 2.5 Inches