The product is a ceramic bezel insert ring specifically designed for Casio Duro/Marlin MDV-106 and MDV-107 watches. Made in China, this insert ring is compatible with certain Casio models and is crafted from high-quality ceramic material. The dimensions of the insert ring are 41x32.8mm, making it a perfect fit for the specified Casio watch models. This product serves as a replacement or upgrade part for watch enthusiasts looking to customize or repair their Casio timepieces.