The Owl™ sequencing gel casters allow you to cast bubble free gels in under three minutes. A horizontal plate sliding procedure, capillary action drawing gel between plates, and surface tension, keeps the gel from leaking. No taping or special assembly is required and because the system is so simple to use you'll cast a perfect gel in no time. The system is fully adjustable to accommodate glass plates from 20 cm to 42 cm wide. Cat.No. 669-SGC-1 produces gels 48cm long (footprint: 21cmW x 71cmD x 12.2cmH); Cat.No. 669-SGC-2 produces gels that are 65.5cm long (footprint: 21cm x 102cm x 12.2cm).