The 4 Pack Freezer Basket Retainers 7009399 is a set of replacement parts specifically designed for the Sub-Zero Lower Freezer Basket. With dimensions of 3.35 x 2.36 x 2.09 inches and an item weight of 0.634 ounces, these retainers do not require any batteries for operation. The package does not include any batteries either. Perfect for maintaining the functionality and organization of your freezer basket, these retainers are an essential accessory for any Sub-Zero refrigerator owner.