Whitening Tablets: 1 bottle of 30 tablets Use 1 tablet daily in your Waterpik water flosser handle to remove stains from hard-to-reach areas, between teeth, and along the gumline that other products miss. Compatible with Waterpik models: for use with Waterpik Whitening Water Flosser models WF-05 or WF-06 only. Gentle teeth whitening: as gentle as regular toothpaste, replacement tablets and your Waterpik water flosser easily whiten teeth at home without harsh bleaching chemicals or expensive dental whitening treatments. Clinically proven to remove 25% more stains than brushing alone. Advanced whitening: Waterpik Whitening Water Flosser Refill Tablets WT-30 for the Waterpik Whitening Water Flosser. Helps provide precision teeth whitening while flossing and restores your natural whiteness in four weeks. Customer service: Waterpik support team in Fort Collins, Colorado is available to assist with any questions or product needs. Dimensions: Width: 4.445 cm, Height: 6.985 cm, Length: 4.7625 cm