Quick view OPI Ridge Filler Basecoat (0.5 fl. oz. / 15 mL) by OPI Polish Name: Ridge Filler Basecoat (0.5 fl. oz. / 15 mL) by OPI Size: 15 mL Brand: OPI Collection: Brazil Collection (Spring & Summer 2014) About OPI: OPI is one of the most popular brands in professional nail polish. OPI is consistently featured in... $11.95 Meet Our Fans! Earn Points, Get Free Polish! $1 = 10 Polish Points. $45+, 250 bonus $70+, 700 bonus Every order earns points, see details.