GeneCatcher comes in bags of 250 tips or racks of 48 tips Experience the ease of use and lack of contamination by using GeneCatcher Disposable Gel Excision Tips instead of scalpels!See how easy it is to extract DNA bands out of agarose gel without using a scalpel!https://www.youtube.com/watch?time_continue=14&v=9lEfDM41BYMEMAIL US YOUR REQUEST FOR FREE SAMPLES:(Include size of 6.5 mm x1.0mm or 4.0 mm x 1.0 mm)gelinfo@gelcompany.com