Biometric Wall SafeBarska AX12038 Biometric Wall Safe Barska AX12038 Biometric wall safes are a great idea because you can discreetly hide your valuables behind furniture, a wall hanging or picture and keep it from being discovered if a burglary occurs. Most burglars will not have the time to thoroughly search every inch of your home looking for your valuables so this helps to give you that extra measure of security. Its also a convenient safe because you can locate it