This new FDA-approved product makes so much sense! The storage rack rotates 10 five-ounce bottles on a first in first out basis. The kit includes 10 plastic screw caps with plugs to prevent leaking, 3 baby bottle rings for use with standard size nipples for feeding and freezer-grade labels for dating. All bottle components may be washed on the top rack of your dishwasher. The economical and ecologically sound choice.