Usually baby takes 10-15 mins to finish a bottle of milk. If feeding time is longer than this， you might want to consider changing the bottle teat/nipple to a faster flow teat. Or， use this clever and convenient small device to make the teat's hole slightly bigger for faster flow. The package includes 3 needle sizes. Needle 1: For punching holes suitable to babies aged under 6 months. Needle 2: For punching holes suitable to babies aged 6 months and up. Needle 3: For punching holes suitable for feeding babies with thicker fluids.How to use1. Fit an appropriate needle onto the stem of the punch.2. Position the tip of the needle at about 3mm away from the central hole.3. Position the punch and nipple perpendicularly to the plastic punch plate， which lies on a flat surface. Press the punch through the nipple in a drilling.Important: It is recommended to start punching with a single hole and check if the fluid flow has been improved as expected. Punch additional hole otherwise.Save money by buying one device to adapt the bottle teats rather than spending on new sets of bottle teats for different stages.Included:- 3 needle sizes Punch