Tissue culture bottles, PS, sterile, L 205 x W 120 x H 45 mm, 690 ml, 36 unit(s)Tissue culture bottles, PS, sterile, L 205 x W 120 x H 45 mm, 690 ml Material: PS, PE screw cap. Sterile Variable closure: Screw cap can be closed tightly for anaerobic cultures or screwed in the vent position for defined aeration of aerobic cultures. Angled neck and large opening allow access to the entire culture surface. Very high visual clarity Graduation and labelling area Stackable Non toxic Bottom of bottle has been surface treated for optimal