for the price, these blinds are acceptable. i had to drill additional holes in the brackets to get a good internal mount on our windows. luckily the brackets were the type of plastic that could be drilled easily and the metal snap could be removed for installation. because i ordered them so quickly, i didn't realize that the top down has a cord. not a biggie, probably why they were considerably less than the tdbu totally cordless blinds i have purchased in the past.