These BIO Glass Tips will prevent the smoker from burning their fingers while keeping the blunt and joint dry. The two pokes within the tip will help maintain airflow while preventing flower from being inhaled or entering the mouth. Wanting quality glass tips? Your search is over with BIO Glass! Made in the USA using top-notch materials, these tips are the ultimate in strength and durability. Get ready for a smoking experience that'll last for ages! These glass tips work well with 1 1/4 rolling papers