Amazon calculates a product's star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers and factors that establish reviewer trustworthiness.
This piece is a classic , beautifully finished ,with an antique look .I really love it. It's very heavy, the clapper works smoothly & the sound is also loud enough .Came with the mounting hardware ,very carefully packed . It has to fixed from the inside of the front door , cannot be fixed from the front (so am going to need much longer nails & a carpenter).