18K Gold Plated Stainless Steel Dainty Square Stud Earrings with Clear Crystals. Approx. 0.25" L x 0.25" W (0.64cm L x 0.64cm W) These earrings are hypoallergenic, waterproof, and tarnish-resistant. To prolong the shine and finish of the gold plating, contact with chemicals such as lotions, perfumes, and cleaning products should be avoided.