Wide base/narrow top design prevents fly meal from falling out when bottle is turned upside down

Accommodate narrow- or wide-diameter vials

Straight wall design minimizes the dislodging of food; provides more efficient racking, filling and plugging.

Excellent multi-purpose storage tubes with a cap closure. Gosselin™ Flat-Base Tubes, PS have a flat base to facilitate self standing.

Ideally suited for the cultivation of Drosophila melanogaster.