Lithium Battery, Cell, 3V, 123, 1 EA PK ORS NASCO Jam proof mechanism Retractable striking surface to Jam proof mechanism Retractable striking surface to prevent damage High carbon hardened steel working parts for"creased durability High visibility reflective print enhances visibility Thermal Plastic Rubber knuckle guard and pinch point finger protection AX Suede™ high visibility synthetic palm Armortex® grip on thumb and index finger provides durable gripping power PORON® XRD® palm padding absorbs impact and vibration and more Duracell High Power Lithium batteries are designed and developed for long lasting quality performance Duracell High Power Lithium batteries provide durable value because they are guaranteed for 10 years in storage Guaranteed for 10 years in Storage: Duracell Lithium Coin batteries are guaranteed for 10 years in storage electronics