ABS Perfect Battery Storage Solution: This interesting design provides a first in first out battery storage solution for your batteries. It can store 10 AAA&10AA batteries at a time. Practical Design: Two slots are designed to ensure that your AA and AAA batteries don't get jammed. You can mount it anywhere you want. Like the garage/kitchen/study/cabinet and more. The side window allows you to see how many batteries remain in the chute. Easier Access To Batteries: You can easily remove the battery with your fingers. Because batteries are first-in, first-out, you don't have to worry about which battery to use first. Batteries enter the top and are dispensed one by one out the bottom. Easy Installation: It is fixed by screws or adhesives, The two options are based on your needs. Tips: If you choose adhesive to install the battery holder, Please wait 2-48 hours after installation before storing batteries, the adhesive works best. What's in the Box: 1*Set of holder,4*Screw,4*Rubber plug,2*Adhesive. This interesting design provides a first in first out battery storage solution for your batteries. It can store 10 AAA&10AA batteries at a time.Two slots are designed to ensure that your AA and AAA batteries don't get jammed. You can mount it anywhere you want. Like the garage/kitchen/study/cabinet and more. The side window allows you to see how many batteries remain in the chute.