noun
seven (long cylindrical things)
Used as a counter for long, cylindrical objects such as bottles, pencils, trees, or rolled items. The reading ななほん is standard; しちほん is also possible but less common.
冷蔵庫にビールが七本ある。
There are seven bottles of beer in the fridge.
鉛筆を七本ください。
Please give me seven pencils.