Numbered for easy identification of flow rate
Venting system to help prevent vacuum buildup
Medical grade silicone
Third party tested

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.25 inch
Height : 2.25 inch
Length : 2.5 inch

Item Weight: 0.32 ounce (View shipping rates and policies)
Shipping Weight: 1.6 ounce (View shipping rates and policies)

ASIN : B006ZO19ZU