Designed by dentists and hygienists, Combo-Tip evacuator tips boast a unique design that incorporates the features most requested by dental professionals: Vented and Non-Vented Ends on the Same Evacuator Tip, Unique "S" Tip for Maximum Patient Comfort, No Sharp Edges, Economical and Easy-to-Use, Latex Free.- Tip, Yellow, 100/bg, 10 bg/ctn, 4 ctn/cs 14-21 Days