Self Defense Bear Ring - Window Breaker, Size 7 Small - Tophatter's Guns'N'Weapons Store - FREE SHIPPINGSecurity Bear ring self defense ring. This low profile ring slips on to your finger allowing you to wear it on a daily basis, whether casually, dressing up or when you're out for a run or jog for protection when you need it most, yet expect it the least. This attractive stainless steel ring with subtle, yet sharp points provides instant self defense with pressure points powerful enough to shatter glass and impact 60 times more than bare knuckles.