Available as: DryGel IEF bidirect large no slots (sample application strips) DryGel IEF bidirect large 60S (2 x 30 samples à 12 ul) DryGel IEF bidirect large 80S (2 x 40 samples à 8.5 ul) DryGel IEF bidirect large 104S (2 x 52 samples à 15 ul These gels are non-toxic!